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BOSTON MARATHON 2026

Barbara Koziatek

Bib: 26238•F

MO

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F65-69)
#0 / 273
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
32:15
3.11 mi
Rank: #26928
Start → 5K
32:15 | 10:23/mi
10K
1:04:39
6.21 mi
Rank: #26846 (+82)
5K → 10K
32:24 | 10:26/mi
15K
1:35:46
9.32 mi
Rank: #26470 (+376)
10K → 15K
31:07 | 10:01/mi
20K
2:07:40
12.43 mi
Rank: #26256 (+214)
15K → 20K
31:54 | 10:17/mi
HALF
2:14:30
13.11 mi
Rank: #26215 (+41)
20K → HALF
6:50 | 10:02/mi
25K
2:39:52
15.53 mi
Rank: #26063 (+152)
HALF → 25K
25:22 | 10:28/mi
30K
3:12:58
18.64 mi
Rank: #25812 (+251)
25K → 30K
33:06 | 10:40/mi
20M
3:27:49
20.00 mi
Rank: #25723 (+89)
30K → 20M
14:51 | 10:56/mi
21M
3:39:31
21.00 mi
Rank: #25668 (+55)
20M → 21M
11:42 | 11:42/mi
35K
3:47:24
21.75 mi
Rank: #25614 (+54)
21M → 35K
7:53 | 10:33/mi
23M
4:01:02
23.00 mi
Rank: #25536 (+78)
35K → 23M
13:38 | 10:54/mi
24M
4:11:58
24.00 mi
Rank: #25505 (+31)
23M → 24M
10:56 | 10:56/mi
40K
4:21:10
24.85 mi
Rank: #25434 (+71)
24M → 40K
9:12 | 10:46/mi
25.2M
4:25:13
25.20 mi
Rank: #25402 (+32)
40K → 25.2M
4:03 | 11:45/mi
FINISH
4:36:08
26.22 mi
Rank: #25409 (-7)
25.2M → FINISH
10:55 | 10:43/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:14:30
Pace10:16 /mi
2nd Half
Distance13.11 mi
Time2:21:38
Pace10:49 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:2132:1510:2332:15
10:23
-
10K
6.21 mi12:12:451:04:3910:2532:24
10:26
+0:03
15K
9.32 mi12:43:521:35:4610:1731:07
10:01
-0:25
20K
12.43 mi13:15:462:07:4010:1731:54
10:17
+0:16
HALF
13.11 mi13:22:362:14:3010:166:50
10:02
-0:15
25K
15.53 mi13:47:582:39:5210:1825:22
10:28
+0:26
30K
18.64 mi14:21:043:12:5810:2233:06
10:40
+0:12
20M
20.00 mi14:35:553:27:4910:2414:51
10:56
+0:16
21M
21.00 mi14:47:373:39:3110:2811:42
11:42
+0:46
35K
21.75 mi14:55:303:47:2410:287:53
10:33
-1:09
23M
23.00 mi15:09:084:01:0210:2913:38
10:54
+0:21
24M
24.00 mi15:20:044:11:5810:3010:56
10:56
+0:02
40K
24.85 mi15:29:164:21:1010:319:12
10:46
-0:10
25.2M
25.20 mi15:33:194:25:1310:324:03
11:45
+0:59
FINISH
26.22 mi15:44:144:36:0810:3310:55
10:43
-1:02

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

10:01 /mi

Average Pace

10:32 /mi

Slowest Pace

11:45 /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

4:20:23

94% of race

Time at Steady Pace

15:45

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:32 /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 mi11:40:2132:1510:2332:15
10:23
#26928
10K
6.21 mi12:12:451:04:3910:2532:24
10:26
#26846
15K
9.32 mi12:43:521:35:4610:1731:07
10:01
#26470
20K
12.43 mi13:15:462:07:4010:1731:54
10:17
#26256
HALF
13.11 mi13:22:362:14:3010:166:50
10:02
#26215
25K
15.53 mi13:47:582:39:5210:1825:22
10:28
#26063
30K
18.64 mi14:21:043:12:5810:2233:06
10:40
#25812
20M
20.00 mi14:35:553:27:4910:2414:51
10:56
#25723
21M
21.00 mi14:47:373:39:3110:2811:42
11:42
#25668
35K
21.75 mi14:55:303:47:2410:287:53
10:33
#25614
23M
23.00 mi15:09:084:01:0210:2913:38
10:54
#25536
24M
24.00 mi15:20:044:11:5810:3010:56
10:56
#25505
40K
24.85 mi15:29:164:21:1010:319:12
10:46
#25434
25.2M
25.20 mi15:33:194:25:1310:324:03
11:45
#25402
FINISH
26.22 mi15:44:144:36:0810:3310:55
10:43
#25409
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi26928112341123425732(Top 89%)10572(Top 84%)10572(Top 3873%)
10K6.21 mi3.10 mi26846+8211201+3311201+3326781(Top 92%)11177(Top 89%)11177(Top 4094%)
15K9.32 mi3.11 mi26470+37610984+21710984+21725732(Top 89%)10572(Top 84%)10572(Top 3873%)
20K12.43 mi3.11 mi26256+21410875+10910875+10925644(Top 88%)10557(Top 84%)10557(Top 3867%)
HALF13.11 mi0.68 mi26215+4110847+2810847+2825759(Top 89%)10631(Top 85%)10631(Top 3894%)
25K15.53 mi2.42 mi26063+15210781+6610781+6625365(Top 87%)10440(Top 83%)10440(Top 3824%)
30K18.64 mi3.11 mi25812+25110653+12810653+12824613(Top 85%)10169(Top 81%)10169(Top 3725%)
20M20.00 mi1.36 mi25723+8910628+2510628+2524796(Top 85%)10338(Top 82%)10338(Top 3787%)
21M21.00 mi1.00 mi25668+5510617+1110617+1124574(Top 85%)10283(Top 82%)10283(Top 3767%)
35K21.75 mi0.75 mi25614+5410600+1710600+1724389(Top 84%)10194(Top 81%)10194(Top 3734%)
23M23.00 mi1.25 mi25536+7810576+2410576+2424279(Top 84%)10193(Top 81%)10193(Top 3734%)
24M24.00 mi1.00 mi25505+3110572+410572+424991(Top 86%)10603(Top 84%)10603(Top 3884%)
40K24.85 mi0.85 mi25434+7110551+2110551+2123792(Top 82%)10028(Top 80%)10028(Top 3673%)
25.2M25.20 mi0.35 mi25402+3210536+1510536+1524011(Top 83%)10155(Top 81%)10155(Top 3720%)
FINISH26.22 mi1.02 mi25409-710550-1410550-1425548(Top 88%)10912(Top 87%)10912(Top 3997%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21
+97ft-345ft

Overall

25732

Females

10572

F65-69

10572

5K→10K

3.1 - 6.2 mi

Top 92%
×5
+79ft-138ft

Overall

26781

Females

11177

F65-69

11177

10K→15K

6.2 - 9.3 mi

Top 89%
×3
+67ft-78ft

Overall

25732

Females

10572

F65-69

10572

15K→20K

9.3 - 12.4 mi

Top 88%
×5
+106ft-86ft

Overall

25644

Females

10557

F65-69

10557

20K→HALF

12.4 - 13.1 mi

Top 89%
×2
+19ft-37ft

Overall

25759

Females

10631

F65-69

10631

HALF→25K

13.1 - 15.5 mi

Top 87%
×4
+66ft-88ft

Overall

25365

Females

10440

F65-69

10440

25K→30K

15.5 - 18.6 mi

Top 85%
×9
+181ft-148ft

Overall

24613

Females

10169

F65-69

10169

30K→20M

18.6 - 20.0 mi

Top 85%
×5
+64ft-50ft

Overall

24796

Females

10338

F65-69

10338

20M→21M

20.0 - 21.0 mi

Top 85%
×8
+106ft-24ft

Overall

24574

Females

10283

F65-69

10283

21M→35K

21.0 - 21.8 mi

Top 84%
×7
+17ft-86ft

Overall

24389

Females

10194

F65-69

10194

35K→23M

21.8 - 23.0 mi

Top 84%
×5
+23ft-63ft

Overall

24279

Females

10193

F65-69

10193

23M→24M

23.0 - 24.0 mi

Top 86%
×6
+12ft-82ft

Overall

24991

Females

10603

F65-69

10603

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23792

Females

10028

F65-69

10028

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1
+13ft-16ft

Overall

24011

Females

10155

F65-69

10155

25.2M→FINISH

25.2 - 26.2 mi

Top 88%
×2
+22ft-21ft

Overall

25548

Females

10912

F65-69

10912

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1896
Passed By
377
Net Change
+1519
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26928
5K → 10K222140+82#26928#26846
10K → 15K3815+376#26846#26470
15K → 20K23723+214#26470#26256
20K → HALF476+41#26256#26215
HALF → 25K17826+152#26215#26063
25K → 30K27625+251#26063#25812
30K → 20M10718+89#25812#25723
20M → 21M8429+55#25723#25668
21M → 35K639+54#25668#25614
35K → 23M9214+78#25614#25536
23M → 24M4918+31#25536#25505
24M → 40K8110+71#25505#25434
40K → 25.2M364+32#25434#25402
25.2M → FINISH4350-7#25402#25409
TOTALS1896377+1519

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📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing