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BOSTON MARATHON 2025

Kaitlyn Obrien

Bib: 14769•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 30%
Gender (Female)
#0 / 12228
Top 13%
Division (F18-39)
#0 / 5469
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:36
Rank: #10111
Start → 5K
22:36 | 7:16/mi
10K· 6.21 mi
45:28
Rank: #10484 (-373)
5K → 10K
22:52 | 7:22/mi
15K· 9.32 mi
1:08:19
Rank: #10482 (+2)
10K → 15K
22:51 | 7:21/mi
20K· 12.43 mi
1:31:12
Rank: #10206 (+276)
15K → 20K
22:53 | 7:22/mi
Half· 13.11 mi
1:36:05
Rank: #10134 (+72)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:54:06
Rank: #9955 (+179)
Half → 25K
18:01 | 7:26/mi
30K· 18.64 mi
2:17:42
Rank: #9597 (+358)
25K → 30K
23:36 | 7:36/mi
20M
2:28:08
Rank: #9442 (+155)
30K → 20M
10:26 | 7:41/mi
21M
2:36:16
Rank: #9324 (+118)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:41:42
Rank: #9200 (+124)
21M → 35K
5:26 | 7:16/mi
23M
2:51:07
Rank: #8978 (+222)
35K → 23M
9:25 | 7:31/mi
24M
2:58:32
Rank: #8863 (+115)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
3:04:59
Rank: #8737 (+126)
24M → 40K
6:27 | 7:33/mi
25.2M
3:07:48
Rank: #8687 (+50)
40K → 25.2M
2:49 | 8:10/mi
Finish· 26.22 mi
3:15:04
Rank: #8583 (+104)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:05
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:38:59
Pace7:33 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1922:367:1622:36
7:16
-
10K
6.21 mi11:15:1145:287:1922:52
7:22
+0:06
15K
9.32 mi11:38:021:08:197:2022:51
7:21
-0:01
20K
12.43 mi12:00:551:31:127:2022:53
7:22
+0:01
Half
13.11 mi12:05:481:36:057:204:53
7:09
-0:13
25K
15.53 mi12:23:491:54:067:2118:01
7:26
+0:17
30K
18.64 mi12:47:252:17:427:2323:36
7:36
+0:10
20M
20.00 mi12:57:512:28:087:2410:26
7:41
+0:05
21M
21.00 mi13:05:592:36:167:268:08
8:08
+0:27
35K
21.75 mi13:11:252:41:427:265:26
7:16
-0:52
23M
23.00 mi13:20:502:51:077:269:25
7:31
+0:15
24M
24.00 mi13:28:152:58:327:267:25
7:25
-0:06
40K
24.85 mi13:34:423:04:597:276:27
7:33
+0:08
25.2M
25.20 mi13:37:313:07:487:272:49
8:10
+0:37
Finish
26.22 mi13:44:473:15:047:277:16
7:08
-1:02

Checkpoints & Pacing

📈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

7:08 /mi

Average Pace

7:27 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:07

94% of race

Time at Steady Pace

10:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:52:1922:367:1622:36
7:16
#10111
10K
6.21 mi11:15:1145:287:1922:52
7:22
#10484
15K
9.32 mi11:38:021:08:197:2022:51
7:21
#10482
20K
12.43 mi12:00:551:31:127:2022:53
7:22
#10206
Half
13.11 mi12:05:481:36:057:204:53
7:09
#10134
25K
15.53 mi12:23:491:54:067:2118:01
7:26
#9955
30K
18.64 mi12:47:252:17:427:2323:36
7:36
#9597
20M
20.00 mi12:57:512:28:087:2410:26
7:41
#9442
21M
21.00 mi13:05:592:36:167:268:08
8:08
#9324
35K
21.75 mi13:11:252:41:427:265:26
7:16
#9200
23M
23.00 mi13:20:502:51:077:269:25
7:31
#8978
24M
24.00 mi13:28:152:58:327:267:25
7:25
#8863
40K
24.85 mi13:34:423:04:597:276:27
7:33
#8737
25.2M
25.20 mi13:37:313:07:487:272:49
8:10
#8687
Finish
26.22 mi13:44:473:15:047:277:16
7:08
#8583
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi101111855185510459(Top 37%)2094(Top 17%)2094(Top 38%)
10K6.21 mi3.10 mi10484-3732044-1892044-18910837(Top 38%)2217(Top 18%)2217(Top 41%)
15K9.32 mi3.11 mi10482+22064-202064-2010459(Top 37%)2094(Top 17%)2094(Top 38%)
20K12.43 mi3.11 mi10206+2761966+981966+989603(Top 34%)1784(Top 15%)1784(Top 33%)
Half13.11 mi0.68 mi10134+721930+361930+368802(Top 31%)1414(Top 12%)1414(Top 26%)
25K15.53 mi2.42 mi9955+1791879+511879+519395(Top 33%)1819(Top 15%)1819(Top 33%)
30K18.64 mi3.11 mi9597+3581777+1021777+1028433(Top 30%)1572(Top 13%)1572(Top 29%)
20M20.00 mi1.36 mi9442+1551744+331744+338220(Top 29%)1624(Top 13%)1624(Top 30%)
21M21.00 mi1.00 mi9324+1181722+221722+228184(Top 29%)1799(Top 15%)1799(Top 33%)
35K21.75 mi0.75 mi9200+1241688+341688+347035(Top 25%)1308(Top 11%)1308(Top 24%)
23M23.00 mi1.25 mi8978+2221633+551633+556769(Top 24%)1303(Top 11%)1303(Top 24%)
24M24.00 mi1.00 mi8863+1151616+171616+177172(Top 25%)1527(Top 12%)1527(Top 28%)
40K24.85 mi0.85 mi8737+1261605+111605+117087(Top 25%)1589(Top 13%)1589(Top 29%)
25.2M25.20 mi0.35 mi8687+501597+81597+86939(Top 24%)1611(Top 13%)1611(Top 29%)
Finish26.22 mi1.02 mi8583+1041583+141583+146610(Top 23%)1496(Top 12%)1496(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10459

Females

2094

F18-39

2094

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10837

Females

2217

F18-39

2217

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10459

Females

2094

F18-39

2094

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9603

Females

1784

F18-39

1784

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8802

Females

1414

F18-39

1414

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9395

Females

1819

F18-39

1819

25K→30K

15.5 - 18.6 mi

Top 30%
×9stories
+181ft-148ft

Overall

8433

Females

1572

F18-39

1572

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

8220

Females

1624

F18-39

1624

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8184

Females

1799

F18-39

1799

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7035

Females

1308

F18-39

1308

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6769

Females

1303

F18-39

1303

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7172

Females

1527

F18-39

1527

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7087

Females

1589

F18-39

1589

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6939

Females

1611

F18-39

1611

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6610

Females

1496

F18-39

1496

Passing Analysis

Category:
Athletes Passed
2532*
Passed By
1002
Net Change
+1528
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10111
5K → 10K121493-373#10111#10484
10K → 15K175173+2#10484#10482
15K → 20K32144+276#10482#10206
20K → Half797+72#10206#10134
Half → 25K235*56+179#10134#9955
25K → 30K42567+358#9955#9597
30K → 20M17924+155#9597#9442
20M → 21M15234+118#9442#9324
21M → 35K13410+124#9324#9200
35K → 23M23614+222#9200#8978
23M → 24M13924+115#8978#8863
24M → 40K14418+126#8863#8737
40K → 25.2M599+50#8737#8687
25.2M → Finish13329+104#8687#8583
TOTALS2532*1002+1528

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing