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BOSTON MARATHON 2025

Corey Kelly

Bib: 28542•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:56
Rank: #19000
Start → 5K
25:56 | 8:21/mi
10K· 6.21 mi
51:32
Rank: #18569 (+431)
5K → 10K
25:36 | 8:14/mi
15K· 9.32 mi
1:17:11
Rank: #18283 (+286)
10K → 15K
25:39 | 8:15/mi
20K· 12.43 mi
1:43:00
Rank: #17927 (+356)
15K → 20K
25:49 | 8:19/mi
Half· 13.11 mi
1:48:39
Rank: #17899 (+28)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:08:38
Rank: #17488 (+411)
Half → 25K
19:59 | 8:15/mi
30K· 18.64 mi
2:34:34
Rank: #16791 (+697)
25K → 30K
25:56 | 8:21/mi
20M
2:45:56
Rank: #16494 (+297)
30K → 20M
11:22 | 8:22/mi
21M
2:54:40
Rank: #16201 (+293)
20M → 21M
8:44 | 8:44/mi
35K· 21.75 mi
3:00:51
Rank: #16089 (+112)
21M → 35K
6:11 | 8:16/mi
23M
3:11:22
Rank: #15813 (+276)
35K → 23M
10:31 | 8:24/mi
24M
3:20:01
Rank: #15790 (+23)
23M → 24M
8:39 | 8:39/mi
40K· 24.85 mi
3:27:29
Rank: #15724 (+66)
24M → 40K
7:28 | 8:44/mi
25.2M
3:30:42
Rank: #15685 (+39)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:39:04
Rank: #15633 (+52)
25.2M → Finish
8:22 | 8:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:39
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:50:25
Pace8:25 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:4325:568:2125:56
8:21
-
10K
6.21 mi12:08:1951:328:1825:36
8:14
-0:07
15K
9.32 mi12:33:581:17:118:1725:39
8:15
+0:01
20K
12.43 mi12:59:471:43:008:1725:49
8:19
+0:04
Half
13.11 mi13:05:261:48:398:175:39
8:17
-0:02
25K
15.53 mi13:25:252:08:388:1719:59
8:15
-0:02
30K
18.64 mi13:51:212:34:348:1825:56
8:21
+0:06
20M
20.00 mi14:02:432:45:568:1811:22
8:22
+0:01
21M
21.00 mi14:11:272:54:408:198:44
8:44
+0:22
35K
21.75 mi14:17:383:00:518:196:11
8:16
-0:28
23M
23.00 mi14:28:093:11:228:1910:31
8:24
+0:08
24M
24.00 mi14:36:483:20:018:208:39
8:39
+0:15
40K
24.85 mi14:44:163:27:298:217:28
8:44
+0:05
25.2M
25.20 mi14:47:293:30:428:223:13
9:20
+0:36
Finish
26.22 mi14:55:513:39:048:228:22
8:13
-1:07

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

8:13 /mi

Average Pace

8:22 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:51

99% of race

Time at Steady Pace

3:13

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:21 /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 mi11:42:4325:568:2125:56
8:21
#19000
10K
6.21 mi12:08:1951:328:1825:36
8:14
#18569
15K
9.32 mi12:33:581:17:118:1725:39
8:15
#18283
20K
12.43 mi12:59:471:43:008:1725:49
8:19
#17927
Half
13.11 mi13:05:261:48:398:175:39
8:17
#17899
25K
15.53 mi13:25:252:08:388:1719:59
8:15
#17488
30K
18.64 mi13:51:212:34:348:1825:56
8:21
#16791
20M
20.00 mi14:02:432:45:568:1811:22
8:22
#16494
21M
21.00 mi14:11:272:54:408:198:44
8:44
#16201
35K
21.75 mi14:17:383:00:518:196:11
8:16
#16089
23M
23.00 mi14:28:093:11:228:1910:31
8:24
#15813
24M
24.00 mi14:36:483:20:018:208:39
8:39
#15790
40K
24.85 mi14:44:163:27:298:217:28
8:44
#15724
25.2M
25.20 mi14:47:293:30:428:223:13
9:20
#15685
Finish
26.22 mi14:55:513:39:048:228:22
8:13
#15633
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi190006906690617774(Top 63%)6184(Top 51%)6184(Top 113%)
10K6.21 mi3.10 mi18569+4316654+2526654+25218169(Top 64%)6398(Top 52%)6398(Top 117%)
15K9.32 mi3.11 mi18283+2866495+1596495+15917774(Top 63%)6184(Top 51%)6184(Top 113%)
20K12.43 mi3.11 mi17927+3566291+2046291+20416993(Top 60%)5767(Top 47%)5767(Top 105%)
Half13.11 mi0.68 mi17899+286284+76284+717836(Top 63%)6215(Top 51%)6215(Top 114%)
25K15.53 mi2.42 mi17488+4116051+2336051+23315583(Top 55%)5067(Top 41%)5067(Top 93%)
30K18.64 mi3.11 mi16791+6975691+3605691+36013815(Top 49%)4269(Top 35%)4269(Top 78%)
20M20.00 mi1.36 mi16494+2975552+1395552+13912966(Top 46%)3964(Top 32%)3964(Top 72%)
21M21.00 mi1.00 mi16201+2935410+1425410+14211933(Top 42%)3570(Top 29%)3570(Top 65%)
35K21.75 mi0.75 mi16089+1125372+385372+3814093(Top 50%)4729(Top 39%)4729(Top 86%)
23M23.00 mi1.25 mi15813+2765257+1155257+11512729(Top 45%)4127(Top 34%)4127(Top 75%)
24M24.00 mi1.00 mi15790+235264-75264-715470(Top 54%)5632(Top 46%)5632(Top 103%)
40K24.85 mi0.85 mi15724+665243+215243+2114831(Top 52%)5428(Top 44%)5428(Top 99%)
25.2M25.20 mi0.35 mi15685+395240+35240+313680(Top 48%)4860(Top 40%)4860(Top 89%)
Finish26.22 mi1.02 mi15633+525230+105230+1014365(Top 51%)5138(Top 42%)5138(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

17774

Females

6184

F18-39

6184

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18169

Females

6398

F18-39

6398

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

17774

Females

6184

F18-39

6184

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

16993

Females

5767

F18-39

5767

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17836

Females

6215

F18-39

6215

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15583

Females

5067

F18-39

5067

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13815

Females

4269

F18-39

4269

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12966

Females

3964

F18-39

3964

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11933

Females

3570

F18-39

3570

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14093

Females

4729

F18-39

4729

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12729

Females

4127

F18-39

4127

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

15470

Females

5632

F18-39

5632

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14831

Females

5428

F18-39

5428

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13680

Females

4860

F18-39

4860

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

14365

Females

5138

F18-39

5138

Passing Analysis

Category:
Athletes Passed
3797
Passed By
430
Net Change
+3367
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19000
5K → 10K548117+431#19000#18569
10K → 15K35266+286#18569#18283
15K → 20K39539+356#18283#17927
20K → Half5123+28#17927#17899
Half → 25K42211+411#17899#17488
25K → 30K7058+697#17488#16791
30K → 20M2992+297#16791#16494
20M → 21M3007+293#16494#16201
21M → 35K1219+112#16201#16089
35K → 23M2815+276#16089#15813
23M → 24M7754+23#15813#15790
24M → 40K11044+66#15790#15724
40K → 25.2M5011+39#15724#15685
25.2M → Finish8634+52#15685#15633
TOTALS3797430+3367
📊

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