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BOSTON MARATHON 2026

Kristin Kostecki

Bib: 27351 •F •Age: N/A

MO

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F55-59)
#0 / 951
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:25
3.11 mi
Rank: #21827
Start → 5K
27:25 | 8:50/mi
10K
56:04
6.21 mi
Rank: #22853 (-1026)
5K → 10K
28:39 | 9:14/mi
15K
1:25:19
9.32 mi
Rank: #23382 (-529)
10K → 15K
29:15 | 9:25/mi
20K
1:55:59
12.43 mi
Rank: #23798 (-416)
15K → 20K
30:40 | 9:53/mi
HALF
2:02:09
13.11 mi
Rank: #23759 (+39)
20K → HALF
6:10 | 9:03/mi
25K
2:27:47
15.53 mi
Rank: #24137 (-378)
HALF → 25K
25:38 | 10:35/mi
30K
3:00:17
18.64 mi
Rank: #24117 (+20)
25K → 30K
32:30 | 10:28/mi
20M
3:14:19
20.00 mi
Rank: #24060 (+57)
30K → 20M
14:02 | 10:20/mi
21M
3:26:13
21.00 mi
Rank: #24115 (-55)
20M → 21M
11:54 | 11:54/mi
35K
3:33:48
21.75 mi
Rank: #24101 (+14)
21M → 35K
7:35 | 10:09/mi
23M
3:46:08
23.00 mi
Rank: #23925 (+176)
35K → 23M
12:20 | 9:52/mi
24M
3:55:59
24.00 mi
Rank: #23846 (+79)
23M → 24M
9:51 | 9:51/mi
40K
4:04:54
24.85 mi
Rank: #23836 (+10)
24M → 40K
8:55 | 10:26/mi
25.2M
4:08:34
25.20 mi
Rank: #23793 (+43)
40K → 25.2M
3:40 | 10:38/mi
FINISH
4:18:05
26.22 mi
Rank: #23709 (+84)
25.2M → FINISH
9:31 | 9:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:02:09
Pace9:20 /mi
2nd Half
Distance13.11 mi
Time2:15:56
Pace10:23 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:3327:258:5027:25
8:50
-
10K
6.21 mi12:17:1256:049:0228:39
9:14
+0:24
15K
9.32 mi12:46:271:25:199:1029:15
9:25
+0:11
20K
12.43 mi13:17:071:55:599:2030:40
9:53
+0:28
HALF
13.11 mi13:23:172:02:099:206:10
9:03
-0:50
25K
15.53 mi13:48:552:27:479:3125:38
10:35
+1:32
30K
18.64 mi14:21:253:00:179:4132:30
10:28
-0:07
20M
20.00 mi14:35:273:14:199:4314:02
10:20
-0:08
21M
21.00 mi14:47:213:26:139:5011:54
11:54
+1:34
35K
21.75 mi14:54:563:33:489:507:35
10:09
-1:45
23M
23.00 mi15:07:163:46:089:5012:20
9:52
-0:17
24M
24.00 mi15:17:073:55:599:509:51
9:51
-0:01
40K
24.85 mi15:26:024:04:549:528:55
10:26
+0:35
25.2M
25.20 mi15:29:424:08:349:523:40
10:38
+0:12
FINISH
26.22 mi15:39:134:18:059:529:31
9:21
-1:17

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:50 /mi

Average Pace

9:51 /mi

Slowest Pace

11:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:41:00

39% of race

Time at Steady Pace

1:00:26

23% of race

Time at Slower Pace

1:36:39

37% of race

Average Pace: 9:51 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:48:3327:258:5027:25
8:50
#21827
10K
6.21 mi12:17:1256:049:0228:39
9:14
#22853
15K
9.32 mi12:46:271:25:199:1029:15
9:25
#23382
20K
12.43 mi13:17:071:55:599:2030:40
9:53
#23798
HALF
13.11 mi13:23:172:02:099:206:10
9:03
#23759
25K
15.53 mi13:48:552:27:479:3125:38
10:35
#24137
30K
18.64 mi14:21:253:00:179:4132:30
10:28
#24117
20M
20.00 mi14:35:273:14:199:4314:02
10:20
#24060
21M
21.00 mi14:47:213:26:139:5011:54
11:54
#24115
35K
21.75 mi14:54:563:33:489:507:35
10:09
#24101
23M
23.00 mi15:07:163:46:089:5012:20
9:52
#23925
24M
24.00 mi15:17:073:55:599:509:51
9:51
#23846
40K
24.85 mi15:26:024:04:549:528:55
10:26
#23836
25.2M
25.20 mi15:29:424:08:349:523:40
10:38
#23793
FINISH
26.22 mi15:39:134:18:059:529:31
9:21
#23709
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi218278609860924192(Top 83%)9751(Top 78%)9751(Top 1025%)
10K6.21 mi3.10 mi22853-10269081-4729081-47223695(Top 82%)9506(Top 76%)9506(Top 1000%)
15K9.32 mi3.11 mi23382-5299350-2699350-26924192(Top 83%)9751(Top 78%)9751(Top 1025%)
20K12.43 mi3.11 mi23798-4169551-2019551-20124724(Top 85%)10064(Top 80%)10064(Top 1058%)
HALF13.11 mi0.68 mi23759+399538+139538+1322994(Top 79%)9171(Top 73%)9171(Top 964%)
25K15.53 mi2.42 mi24137-3789742-2049742-20425585(Top 88%)10556(Top 84%)10556(Top 1110%)
30K18.64 mi3.11 mi24117+209759-179759-1724216(Top 83%)9956(Top 79%)9956(Top 1047%)
20M20.00 mi1.36 mi24060+579738+219738+2123441(Top 81%)9614(Top 76%)9614(Top 1011%)
21M21.00 mi1.00 mi24115-559780-429780-4224906(Top 86%)10448(Top 83%)10448(Top 1099%)
35K21.75 mi0.75 mi24101+149779+19779+123522(Top 81%)9729(Top 77%)9729(Top 1023%)
23M23.00 mi1.25 mi23925+1769715+649715+6421737(Top 75%)8867(Top 70%)8867(Top 932%)
24M24.00 mi1.00 mi23846+799681+349681+3422399(Top 77%)9237(Top 73%)9237(Top 971%)
40K24.85 mi0.85 mi23836+109695-149695-1423057(Top 79%)9650(Top 77%)9650(Top 1015%)
25.2M25.20 mi0.35 mi23793+439680+159680+1521511(Top 74%)8843(Top 70%)8843(Top 930%)
FINISH26.22 mi1.02 mi23709+849660+209660+2021817(Top 75%)8974(Top 71%)8974(Top 944%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21
+97ft-345ft

Overall

24192

Females

9751

F55-59

9751

5K→10K

3.1 - 6.2 mi

Top 82%
×5
+79ft-138ft

Overall

23695

Females

9506

F55-59

9506

10K→15K

6.2 - 9.3 mi

Top 83%
×3
+67ft-78ft

Overall

24192

Females

9751

F55-59

9751

15K→20K

9.3 - 12.4 mi

Top 85%
×5
+106ft-86ft

Overall

24724

Females

10064

F55-59

10064

20K→HALF

12.4 - 13.1 mi

Top 79%
×2
+19ft-37ft

Overall

22994

Females

9171

F55-59

9171

HALF→25K

13.1 - 15.5 mi

Top 88%
×4
+66ft-88ft

Overall

25585

Females

10556

F55-59

10556

25K→30K

15.5 - 18.6 mi

Top 83%
×9
+181ft-148ft

Overall

24216

Females

9956

F55-59

9956

30K→20M

18.6 - 20.0 mi

Top 81%
×5
+64ft-50ft

Overall

23441

Females

9614

F55-59

9614

20M→21M

20.0 - 21.0 mi

Top 86%
×8
+106ft-24ft

Overall

24906

Females

10448

F55-59

10448

21M→35K

21.0 - 21.8 mi

Top 81%
×7
+17ft-86ft

Overall

23522

Females

9729

F55-59

9729

35K→23M

21.8 - 23.0 mi

Top 75%
×5
+23ft-63ft

Overall

21737

Females

8867

F55-59

8867

23M→24M

23.0 - 24.0 mi

Top 77%
×6
+12ft-82ft

Overall

22399

Females

9237

F55-59

9237

24M→40K

24.0 - 24.9 mi

Top 79%
×1
+6ft-20ft

Overall

23057

Females

9650

F55-59

9650

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1
+13ft-16ft

Overall

21511

Females

8843

F55-59

8843

25.2M→FINISH

25.2 - 26.2 mi

Top 75%
×2
+22ft-21ft

Overall

21817

Females

8974

F55-59

8974

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1019
Passed By
1181
Net Change
-1882
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21827
5K → 10K39200-1026#21827#22853
10K → 15K46200-529#22853#23382
15K → 20K56200-416#23382#23798
20K → HALF4910+39#23798#23759
HALF → 25K30200-378#23759#24137
25K → 30K158138+20#24137#24117
30K → 20M9336+57#24117#24060
20M → 21M47102-55#24060#24115
21M → 35K4026+14#24115#24101
35K → 23M1804+176#24101#23925
23M → 24M8910+79#23925#23846
24M → 40K4636+10#23846#23836
40K → 25.2M485+43#23836#23793
25.2M → FINISH9814+84#23793#23709
TOTALS10191181-1882
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing