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BOSTON MARATHON 2025

Jocelyn Cornman

Bib: 21709•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 48%
Masters (Masters Women)
#0 / 6759
Top 37%
Division (F45-49)
#0 / 1813
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:22
Rank: #17867
Start → 5K
25:22 | 8:10/mi
10K· 6.21 mi
50:43
Rank: #17706 (+161)
5K → 10K
25:21 | 8:10/mi
15K· 9.32 mi
1:16:15
Rank: #17640 (+66)
10K → 15K
25:32 | 8:13/mi
20K· 12.43 mi
1:41:56
Rank: #17362 (+278)
15K → 20K
25:41 | 8:16/mi
Half· 13.11 mi
1:47:32
Rank: #17342 (+20)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:07:50
Rank: #17142 (+200)
Half → 25K
20:18 | 8:22/mi
30K· 18.64 mi
2:35:21
Rank: #17046 (+96)
25K → 30K
27:31 | 8:51/mi
20M
2:47:24
Rank: #16954 (+92)
30K → 20M
12:03 | 8:52/mi
21M
2:57:20
Rank: #16976 (-22)
20M → 21M
9:56 | 9:56/mi
35K· 21.75 mi
3:03:53
Rank: #16981 (-5)
21M → 35K
6:33 | 8:45/mi
23M
3:15:07
Rank: #16905 (+76)
35K → 23M
11:14 | 8:58/mi
24M
3:24:20
Rank: #16980 (-75)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:32:01
Rank: #16956 (+24)
24M → 40K
7:41 | 8:59/mi
25.2M
3:35:19
Rank: #16910 (+46)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:43:37
Rank: #16776 (+134)
25.2M → Finish
8:18 | 8:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:32
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:56:05
Pace8:51 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3125:228:1025:22
8:10
-
10K
6.21 mi11:45:5250:438:1025:21
8:10
0:00
15K
9.32 mi12:11:241:16:158:1125:32
8:13
+0:03
20K
12.43 mi12:37:051:41:568:1225:41
8:16
+0:03
Half
13.11 mi12:42:411:47:328:125:36
8:12
-0:04
25K
15.53 mi13:02:592:07:508:1420:18
8:22
+0:10
30K
18.64 mi13:30:302:35:218:2027:31
8:51
+0:29
20M
20.00 mi13:42:332:47:248:2212:03
8:52
+0:01
21M
21.00 mi13:52:292:57:208:279:56
9:56
+1:04
35K
21.75 mi13:59:023:03:538:276:33
8:45
-1:11
23M
23.00 mi14:10:163:15:078:2911:14
8:58
+0:13
24M
24.00 mi14:19:293:24:208:319:13
9:13
+0:15
40K
24.85 mi14:27:103:32:018:327:41
8:59
-0:14
25.2M
25.20 mi14:30:283:35:198:333:18
9:34
+0:35
Finish
26.22 mi14:38:463:43:378:328:18
8:09
-1:25

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

8:09 /mi

Average Pace

8:32 /mi

Slowest Pace

9:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:08

61% of race

Time at Steady Pace

1:05:02

29% of race

Time at Slower Pace

22:27

10% of race

Average Pace: 8:32 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:20:3125:228:1025:22
8:10
#17867
10K
6.21 mi11:45:5250:438:1025:21
8:10
#17706
15K
9.32 mi12:11:241:16:158:1125:32
8:13
#17640
20K
12.43 mi12:37:051:41:568:1225:41
8:16
#17362
Half
13.11 mi12:42:411:47:328:125:36
8:12
#17342
25K
15.53 mi13:02:592:07:508:1420:18
8:22
#17142
30K
18.64 mi13:30:302:35:218:2027:31
8:51
#17046
20M
20.00 mi13:42:332:47:248:2212:03
8:52
#16954
21M
21.00 mi13:52:292:57:208:279:56
9:56
#16976
35K
21.75 mi13:59:023:03:538:276:33
8:45
#16981
23M
23.00 mi14:10:163:15:078:2911:14
8:58
#16905
24M
24.00 mi14:19:293:24:208:319:13
9:13
#16980
40K
24.85 mi14:27:103:32:018:327:41
8:59
#16956
25.2M
25.20 mi14:30:283:35:198:333:18
9:34
#16910
Finish
26.22 mi14:38:463:43:378:328:18
8:09
#16776
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi178676261626117514(Top 62%)6022(Top 49%)6022(Top 332%)
10K6.21 mi3.10 mi17706+1616146+1156146+11517623(Top 62%)6071(Top 50%)6071(Top 335%)
15K9.32 mi3.11 mi17640+666105+416105+4117514(Top 62%)6022(Top 49%)6022(Top 332%)
20K12.43 mi3.11 mi17362+2785955+1505955+15016757(Top 59%)5641(Top 46%)5641(Top 311%)
Half13.11 mi0.68 mi17342+205946+95946+917365(Top 61%)5964(Top 49%)5964(Top 329%)
25K15.53 mi2.42 mi17142+2005852+945852+9416401(Top 58%)5535(Top 45%)5535(Top 305%)
30K18.64 mi3.11 mi17046+965848+45848+416937(Top 60%)5996(Top 49%)5996(Top 331%)
20M20.00 mi1.36 mi16954+925810+385810+3816060(Top 57%)5628(Top 46%)5628(Top 310%)
21M21.00 mi1.00 mi16976-225863-535863-5318051(Top 64%)6815(Top 56%)6815(Top 376%)
35K21.75 mi0.75 mi16981-55885-225885-2217044(Top 60%)6365(Top 52%)6365(Top 351%)
23M23.00 mi1.25 mi16905+765884+15884+116117(Top 57%)5951(Top 49%)5951(Top 328%)
24M24.00 mi1.00 mi16980-755944-605944-6018435(Top 65%)7264(Top 59%)7264(Top 401%)
40K24.85 mi0.85 mi16956+245963-195963-1916239(Top 57%)6171(Top 50%)6171(Top 340%)
25.2M25.20 mi0.35 mi16910+465948+155948+1515015(Top 53%)5562(Top 45%)5562(Top 307%)
Finish26.22 mi1.02 mi16776+1345893+555893+5513942(Top 49%)4932(Top 40%)4932(Top 272%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17514

Females

6022

F45-49

6022

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17623

Females

6071

F45-49

6071

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17514

Females

6022

F45-49

6022

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16757

Females

5641

F45-49

5641

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

17365

Females

5964

F45-49

5964

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

16401

Females

5535

F45-49

5535

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

16937

Females

5996

F45-49

5996

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

16060

Females

5628

F45-49

5628

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

18051

Females

6815

F45-49

6815

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17044

Females

6365

F45-49

6365

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16117

Females

5951

F45-49

5951

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18435

Females

7264

F45-49

7264

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16239

Females

6171

F45-49

6171

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15015

Females

5562

F45-49

5562

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13942

Females

4932

F45-49

4932

Passing Analysis

Category:
Athletes Passed
2316
Passed By
1225
Net Change
+1091
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17867
5K → 10K365204+161#17867#17706
10K → 15K218152+66#17706#17640
15K → 20K33759+278#17640#17362
20K → Half4424+20#17362#17342
Half → 25K26464+200#17342#17142
25K → 30K264168+96#17142#17046
30K → 20M13947+92#17046#16954
20M → 21M115137-22#16954#16976
21M → 35K6065-5#16976#16981
35K → 23M15377+76#16981#16905
23M → 24M52127-75#16905#16980
24M → 40K8763+24#16980#16956
40K → 25.2M5812+46#16956#16910
25.2M → Finish16026+134#16910#16776
TOTALS23161225+1091
📊

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