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BOSTON MARATHON 2025

Kristen Korbani

Bib: 27157•F

NH

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
30:26
Rank: #25084
Start → 5K
9:48/mi
30:26 split
10K· 6.21 mi
1:00:25
Rank: #24796 (+288)
5K → 10K
9:39/mi
29:59 split
15K· 9.32 mi
1:30:21
Rank: #24568 (+228)
10K → 15K
9:38/mi
29:56 split
20K· 12.43 mi
2:01:11
Rank: #24417 (+151)
15K → 20K
9:55/mi
30:50 split
Half· 13.11 mi
2:07:51
Rank: #24417
20K → Half
9:46/mi
6:40 split
25K· 15.53 mi
2:32:43
Rank: #24330 (+87)
Half → 25K
10:15/mi
24:52 split
30K· 18.64 mi
3:06:59
Rank: #24301 (+29)
25K → 30K
11:02/mi
34:16 split
20M
3:21:53
Rank: #24248 (+53)
30K → 20M
10:58/mi
14:54 split
21M
3:35:34
Rank: #24374 (-126)
20M → 21M
13:41/mi
13:41 split
35K· 21.75 mi
3:43:55
Rank: #24399 (-25)
21M → 35K
11:10/mi
8:21 split
23M
3:58:07
Rank: #24384 (+15)
35K → 23M
11:20/mi
14:12 split
24M
4:09:03
Rank: #24351 (+33)
23M → 24M
10:56/mi
10:56 split
40K· 24.85 mi
4:18:36
Rank: #24329 (+22)
24M → 40K
11:10/mi
9:33 split
25.2M
4:22:48
Rank: #24313 (+16)
40K → 25.2M
12:11/mi
4:12 split
Finish· 26.22 mi
4:33:31
Rank: #24327 (-14)
25.2M → Finish
10:31/mi
10:43 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:51
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:25:40
Pace11:07 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5230:269:4830:26
9:48
-
10K
6.21 mi12:20:511:00:259:4329:59
9:39
-0:09
15K
9.32 mi12:50:471:30:219:4229:56
9:38
-0:01
20K
12.43 mi13:21:372:01:119:4530:50
9:55
+0:17
Half
13.11 mi13:28:172:07:519:456:40
9:46
-0:09
25K
15.53 mi13:53:092:32:439:5024:52
10:15
+0:29
30K
18.64 mi14:27:253:06:5910:0234:16
11:02
+0:47
20M
20.00 mi14:42:193:21:5310:0614:54
10:58
-0:04
21M
21.00 mi14:56:003:35:3410:1613:41
13:41
+2:43
35K
21.75 mi15:04:213:43:5510:188:21
11:10
-2:31
23M
23.00 mi15:18:333:58:0710:2114:12
11:20
+0:10
24M
24.00 mi15:29:294:09:0310:2310:56
10:56
-0:24
40K
24.85 mi15:39:024:18:3610:249:33
11:10
+0:14
25.2M
25.20 mi15:43:144:22:4810:264:12
12:11
+1:01
Finish
26.22 mi15:53:574:33:3110:2610:43
10:31
-1:40

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

9:38 /mi

Average Pace

10:26 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:43

56% of race

Time at Steady Pace

1:42:55

38% of race

Time at Slower Pace

17:53

7% of race

Average Pace: 10:26 /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 mi11:50:5230:269:4830:26
9:48
#25084
10K
6.21 mi12:20:511:00:259:4329:59
9:39
#24796
15K
9.32 mi12:50:471:30:219:4229:56
9:38
#24568
20K
12.43 mi13:21:372:01:119:4530:50
9:55
#24417
Half
13.11 mi13:28:172:07:519:456:40
9:46
#24417
25K
15.53 mi13:53:092:32:439:5024:52
10:15
#24330
30K
18.64 mi14:27:253:06:5910:0234:16
11:02
#24301
20M
20.00 mi14:42:193:21:5310:0614:54
10:58
#24248
21M
21.00 mi14:56:003:35:3410:1613:41
13:41
#24374
35K
21.75 mi15:04:213:43:5510:188:21
11:10
#24399
23M
23.00 mi15:18:333:58:0710:2114:12
11:20
#24384
24M
24.00 mi15:29:294:09:0310:2310:56
10:56
#24351
40K
24.85 mi15:39:024:18:3610:249:33
11:10
#24329
25.2M
25.20 mi15:43:144:22:4810:264:12
12:11
#24313
Finish
26.22 mi15:53:574:33:3110:2610:43
10:31
#24327
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25084102481024824115(Top 85%)9737(Top 80%)9737(Top 178%)
10K6.21 mi3.10 mi24796+28810119+12910119+12924490(Top 86%)9960(Top 81%)9960(Top 182%)
15K9.32 mi3.11 mi24568+2289995+1249995+12424115(Top 85%)9737(Top 80%)9737(Top 178%)
20K12.43 mi3.11 mi24417+1519929+669929+6624079(Top 85%)9754(Top 80%)9754(Top 178%)
Half13.11 mi0.68 mi244179924+59924+524336(Top 86%)9898(Top 81%)9898(Top 181%)
25K15.53 mi2.42 mi24330+879897+279897+2723856(Top 84%)9668(Top 79%)9668(Top 177%)
30K18.64 mi3.11 mi24301+299893+49893+424055(Top 85%)9891(Top 81%)9891(Top 181%)
20M20.00 mi1.36 mi24248+539882+119882+1123525(Top 83%)9699(Top 79%)9699(Top 177%)
21M21.00 mi1.00 mi24374-1269968-869968-8625866(Top 91%)10973(Top 90%)10973(Top 201%)
35K21.75 mi0.75 mi24399-259991-239991-2324551(Top 86%)10360(Top 85%)10360(Top 189%)
23M23.00 mi1.25 mi24384+159997-69997-623981(Top 84%)10089(Top 83%)10089(Top 184%)
24M24.00 mi1.00 mi24351+339991+69991+623869(Top 84%)10052(Top 82%)10052(Top 184%)
40K24.85 mi0.85 mi24329+229986+59986+523511(Top 83%)9953(Top 81%)9953(Top 182%)
25.2M25.20 mi0.35 mi24313+169989-39989-323600(Top 83%)9977(Top 82%)9977(Top 182%)
Finish26.22 mi1.02 mi24327-1410006-1710006-1724321(Top 86%)10321(Top 84%)10321(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

24115

Females

9737

F18-39

9737

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24490

Females

9960

F18-39

9960

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

24115

Females

9737

F18-39

9737

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24079

Females

9754

F18-39

9754

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24336

Females

9898

F18-39

9898

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23856

Females

9668

F18-39

9668

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24055

Females

9891

F18-39

9891

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23525

Females

9699

F18-39

9699

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25866

Females

10973

F18-39

10973

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

24551

Females

10360

F18-39

10360

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23981

Females

10089

F18-39

10089

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

23869

Females

10052

F18-39

10052

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23511

Females

9953

F18-39

9953

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23600

Females

9977

F18-39

9977

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24321

Females

10321

F18-39

10321

Passing Analysis

Category:
Athletes Passed
1560
Passed By
803
Net Change
+757
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25084
5K → 10K37486+288#25084#24796
10K → 15K26638+228#24796#24568
15K → 20K20756+151#24568#24417
20K → Half23230#24417#24417
Half → 25K16073+87#24417#24330
25K → 30K157128+29#24330#24301
30K → 20M9037+53#24301#24248
20M → 21M31157-126#24248#24374
21M → 35K2449-25#24374#24399
35K → 23M6348+15#24399#24384
23M → 24M6835+33#24384#24351
24M → 40K4826+22#24351#24329
40K → 25.2M215+16#24329#24313
25.2M → Finish2842-14#24313#24327
TOTALS1560803+757
📊

Passing Visuals

Category:
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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