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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Colleen Kostiak

Bib: 24878 •F •Age: N/A

PA

Boston Marathon logo
0:00
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
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  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
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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
27:07
3.11 mi
Rank: #21356
Start → 5K
27:07 | 8:44/mi
10K
54:45
6.21 mi
Rank: #21875 (-519)
5K → 10K
27:38 | 8:54/mi
15K
1:24:28
9.32 mi
Rank: #22973 (-1098)
10K → 15K
29:43 | 9:34/mi
20K
1:52:31
12.43 mi
Rank: #22724 (+249)
15K → 20K
28:03 | 9:02/mi
HALF
1:58:33
13.11 mi
Rank: #22690 (+34)
20K → HALF
6:02 | 8:52/mi
25K
2:23:48
15.53 mi
Rank: #23324 (-634)
HALF → 25K
25:15 | 10:25/mi
30K
2:53:14
18.64 mi
Rank: #22963 (+361)
25K → 30K
29:26 | 9:29/mi
20M
3:06:12
20.00 mi
Rank: #22819 (+144)
30K → 20M
12:58 | 9:33/mi
21M
3:16:55
21.00 mi
Rank: #22777 (+42)
20M → 21M
10:43 | 10:43/mi
35K
3:23:57
21.75 mi
Rank: #22721 (+56)
21M → 35K
7:02 | 9:25/mi
23M
3:36:14
23.00 mi
Rank: #22661 (+60)
35K → 23M
12:17 | 9:49/mi
24M
3:45:20
24.00 mi
Rank: #22541 (+120)
23M → 24M
9:06 | 9:06/mi
40K
3:53:37
24.85 mi
Rank: #22465 (+76)
24M → 40K
8:17 | 9:42/mi
25.2M
3:57:32
25.20 mi
Rank: #22478 (-13)
40K → 25.2M
3:55 | 11:22/mi
FINISH
4:07:13
26.22 mi
Rank: #22475 (+3)
25.2M → FINISH
9:41 | 9:31/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:58:33
Pace9:03 /mi
2nd Half
Distance13.11 mi
Time2:08:40
Pace9:49 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:32:2227:078:4427:07
8:44
-
10K
6.21 mi12:00:0054:458:4927:38
8:54
+0:10
15K
9.32 mi12:29:431:24:289:0429:43
9:34
+0:40
20K
12.43 mi12:57:461:52:319:0428:03
9:02
-0:32
HALF
13.11 mi13:03:481:58:339:036:02
8:52
-0:10
25K
15.53 mi13:29:032:23:489:1625:15
10:25
+1:33
30K
18.64 mi13:58:292:53:149:1829:26
9:29
-0:56
20M
20.00 mi14:11:273:06:129:1912:58
9:33
+0:04
21M
21.00 mi14:22:103:16:559:2310:43
10:43
+1:10
35K
21.75 mi14:29:123:23:579:237:02
9:25
-1:18
23M
23.00 mi14:41:293:36:149:2512:17
9:49
+0:24
24M
24.00 mi14:50:353:45:209:249:06
9:06
-0:43
40K
24.85 mi14:58:523:53:379:248:17
9:42
+0:36
25.2M
25.20 mi15:02:473:57:329:263:55
11:22
+1:40
FINISH
26.22 mi15:12:284:07:139:279:41
9:31
-1:51

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

8:44 /mi

Average Pace

9:26 /mi

Slowest Pace

11:22 /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

1:37:56

40% of race

Time at Steady Pace

1:49:24

44% of race

Time at Slower Pace

39:53

16% of race

Average Pace: 9:26 /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 mi11:32:2227:078:4427:07
8:44
#21356
10K
6.21 mi12:00:0054:458:4927:38
8:54
#21875
15K
9.32 mi12:29:431:24:289:0429:43
9:34
#22973
20K
12.43 mi12:57:461:52:319:0428:03
9:02
#22724
HALF
13.11 mi13:03:481:58:339:036:02
8:52
#22690
25K
15.53 mi13:29:032:23:489:1625:15
10:25
#23324
30K
18.64 mi13:58:292:53:149:1829:26
9:29
#22963
20M
20.00 mi14:11:273:06:129:1912:58
9:33
#22819
21M
21.00 mi14:22:103:16:559:2310:43
10:43
#22777
35K
21.75 mi14:29:123:23:579:237:02
9:25
#22721
23M
23.00 mi14:41:293:36:149:2512:17
9:49
#22661
24M
24.00 mi14:50:353:45:209:249:06
9:06
#22541
40K
24.85 mi14:58:523:53:379:248:17
9:42
#22465
25.2M
25.20 mi15:02:473:57:329:263:55
11:22
#22478
FINISH
26.22 mi15:12:284:07:139:279:41
9:31
#22475
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 mi213568370837024599(Top 85%)9967(Top 79%)9967(Top 1048%)
10K6.21 mi3.10 mi21875-5198601-2318601-23122379(Top 77%)8846(Top 70%)8846(Top 930%)
15K9.32 mi3.11 mi22973-10989130-5299130-52924599(Top 85%)9967(Top 79%)9967(Top 1048%)
20K12.43 mi3.11 mi22724+2499007+1239007+12322054(Top 76%)8692(Top 69%)8692(Top 914%)
HALF13.11 mi0.68 mi22690+348990+178990+1722112(Top 76%)8702(Top 69%)8702(Top 915%)
25K15.53 mi2.42 mi23324-6349343-3539343-35325276(Top 87%)10383(Top 83%)10383(Top 1092%)
30K18.64 mi3.11 mi22963+3619182+1619182+16121544(Top 74%)8547(Top 68%)8547(Top 899%)
20M20.00 mi1.36 mi22819+1449126+569126+5621256(Top 73%)8479(Top 67%)8479(Top 892%)
21M21.00 mi1.00 mi22777+429121+59121+522460(Top 77%)9131(Top 73%)9131(Top 960%)
35K21.75 mi0.75 mi22721+569105+169105+1621497(Top 74%)8702(Top 69%)8702(Top 915%)
23M23.00 mi1.25 mi22661+609095+109095+1021624(Top 75%)8803(Top 70%)8803(Top 926%)
24M24.00 mi1.00 mi22541+1209043+529043+5219911(Top 69%)8020(Top 64%)8020(Top 843%)
40K24.85 mi0.85 mi22465+769020+239020+2321033(Top 72%)8599(Top 68%)8599(Top 904%)
25.2M25.20 mi0.35 mi22478-139034-149034-1423232(Top 80%)9734(Top 77%)9734(Top 1024%)
FINISH26.22 mi1.02 mi22475+39039-59039-522373(Top 77%)9269(Top 74%)9269(Top 975%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21
+97ft-345ft

Overall

24599

Females

9967

F55-59

9967

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22379

Females

8846

F55-59

8846

10K→15K

6.2 - 9.3 mi

Top 85%
×3
+67ft-78ft

Overall

24599

Females

9967

F55-59

9967

15K→20K

9.3 - 12.4 mi

Top 76%
×5
+106ft-86ft

Overall

22054

Females

8692

F55-59

8692

20K→HALF

12.4 - 13.1 mi

Top 76%
×2
+19ft-37ft

Overall

22112

Females

8702

F55-59

8702

HALF→25K

13.1 - 15.5 mi

Top 87%
×4
+66ft-88ft

Overall

25276

Females

10383

F55-59

10383

25K→30K

15.5 - 18.6 mi

Top 74%
×9
+181ft-148ft

Overall

21544

Females

8547

F55-59

8547

30K→20M

18.6 - 20.0 mi

Top 73%
×5
+64ft-50ft

Overall

21256

Females

8479

F55-59

8479

20M→21M

20.0 - 21.0 mi

Top 77%
×8
+106ft-24ft

Overall

22460

Females

9131

F55-59

9131

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21497

Females

8702

F55-59

8702

35K→23M

21.8 - 23.0 mi

Top 75%
×5
+23ft-63ft

Overall

21624

Females

8803

F55-59

8803

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

19911

Females

8020

F55-59

8020

24M→40K

24.0 - 24.9 mi

Top 72%
×1
+6ft-20ft

Overall

21033

Females

8599

F55-59

8599

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1
+13ft-16ft

Overall

23232

Females

9734

F55-59

9734

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
×2
+22ft-21ft

Overall

22373

Females

9269

F55-59

9269

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1550*
Passed By
879
Net Change
-1119
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21356
5K → 10K101200-519#21356#21875
10K → 15K13200-1098#21875#22973
15K → 20K294*45+249#22973#22724
20K → HALF4511+34#22724#22690
HALF → 25K25200-634#22690#23324
25K → 30K372*11+361#23324#22963
30K → 20M16521+144#22963#22819
20M → 21M9149+42#22819#22777
21M → 35K7115+56#22777#22721
35K → 23M10141+60#22721#22661
23M → 24M1299+120#22661#22541
24M → 40K8812+76#22541#22465
40K → 25.2M1528-13#22465#22478
25.2M → FINISH4037+3#22478#22475
TOTALS1550*879-1119

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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