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BOSTON MARATHON 2025

Hannah Kershner

Bib: 12389•F

ME

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:36/mi
20:30
↑ 97↓ 3451.5%
10K· 6.21 mi
6:44/mi
41:24
↑ 79↓ 1380.4%
15K· 9.32 mi
6:38/mi
1:01:59
↑ 67↓ 78
20K· 12.43 mi
6:39/mi
1:22:38
↑ 106↓ 860.1%
Half· 13.11 mi
6:34/mi
1:27:07
↑ 19↓ 370.5%
25K· 15.53 mi
6:40/mi
1:43:18
↑ 66↓ 880.2%
30K· 18.64 mi
6:45/mi
2:04:16
↑ 181↓ 1480.2%
20M
6:55/mi
2:13:40
↑ 64↓ 500.2%
21M
7:20/mi
2:21:00
↑ 106↓ 241.6%
35K· 21.75 mi
6:33/mi
2:25:54
↑ 17↓ 861.7%
23M
7:06/mi
2:34:47
↑ 23↓ 630.6%
24M
6:53/mi
2:41:40
↓ 821.3%
40K· 24.85 mi
6:59/mi
2:47:38
↓ 200.3%
25.2M
7:50/mi
2:50:20
↑ 13↓ 160.2%
Finish· 26.22 mi
6:52/mi
2:57:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:07
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:30:13
Pace6:53 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0020:306:3620:30
6:36
-
10K
6.21 mi11:08:5441:246:4020:54
6:44
+0:08
15K
9.32 mi11:29:291:01:596:3920:35
6:38
-0:06
20K
12.43 mi11:50:081:22:386:3920:39
6:39
+0:01
Half
13.11 mi11:54:371:27:076:394:29
6:34
-0:05
25K
15.53 mi12:10:481:43:186:3916:11
6:40
+0:06
30K
18.64 mi12:31:462:04:166:4020:58
6:45
+0:05
20M
20.00 mi12:41:102:13:406:419:24
6:55
+0:10
21M
21.00 mi12:48:302:21:006:437:20
7:20
+0:25
35K
21.75 mi12:53:242:25:546:434:54
6:33
-0:47
23M
23.00 mi13:02:172:34:476:448:53
7:06
+0:33
24M
24.00 mi13:09:102:41:406:446:53
6:53
-0:13
40K
24.85 mi13:15:082:47:386:455:58
6:59
+0:06
25.2M
25.20 mi13:17:502:50:206:462:42
7:50
+0:51
Finish
26.22 mi13:24:502:57:206:467:00
6:52
-0:58

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

6:33 /mi

Average Pace

6:46 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:18

94% of race

Time at Steady Pace

7:20

4% of race

Time at Slower Pace

2:42

2% of race

Average Pace: 6:46 /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 mi10:48:0020:306:3620:30
6:36
#4604
10K
6.21 mi11:08:5441:246:4020:54
6:44
#5040
15K
9.32 mi11:29:291:01:596:3920:35
6:38
#4807
20K
12.43 mi11:50:081:22:386:3920:39
6:39
#4550
Half
13.11 mi11:54:371:27:076:394:29
6:34
#4529
25K
15.53 mi12:10:481:43:186:3916:11
6:40
#4380
30K
18.64 mi12:31:462:04:166:4020:58
6:45
#4052
20M
20.00 mi12:41:102:13:406:419:24
6:55
#3996
21M
21.00 mi12:48:302:21:006:437:20
7:20
#3949
35K
21.75 mi12:53:242:25:546:434:54
6:33
#3880
23M
23.00 mi13:02:172:34:476:448:53
7:06
#3879
24M
24.00 mi13:09:102:41:406:446:53
6:53
#3864
40K
24.85 mi13:15:082:47:386:455:58
6:59
#3831
25.2M
25.20 mi13:17:502:50:206:462:42
7:50
#3839
Finish
26.22 mi13:24:502:57:206:467:00
6:52
#3836
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi46042762764473(Top 16%)272(Top 2%)272(Top 5%)
10K6.21 mi3.10 mi5040-436332-56332-565617(Top 20%)441(Top 4%)441(Top 8%)
15K9.32 mi3.11 mi4807+233302+30302+304473(Top 16%)272(Top 2%)272(Top 5%)
20K12.43 mi3.11 mi4550+257281+21281+214004(Top 14%)234(Top 2%)234(Top 4%)
Half13.11 mi0.68 mi4529+21276+5276+54257(Top 15%)259(Top 2%)259(Top 5%)
25K15.53 mi2.42 mi4380+149265+11265+113962(Top 14%)252(Top 2%)252(Top 5%)
30K18.64 mi3.11 mi4052+328241+24241+243146(Top 11%)185(Top 2%)185(Top 3%)
20M20.00 mi1.36 mi3996+56239+2239+23641(Top 13%)276(Top 2%)276(Top 5%)
21M21.00 mi1.00 mi3949+472392393808(Top 13%)328(Top 3%)328(Top 6%)
35K21.75 mi0.75 mi3880+69235+4235+42769(Top 10%)205(Top 2%)205(Top 4%)
23M23.00 mi1.25 mi3879+1247-12247-124324(Top 15%)480(Top 4%)480(Top 9%)
24M24.00 mi1.00 mi3864+15255-8255-84018(Top 14%)454(Top 4%)454(Top 8%)
40K24.85 mi0.85 mi3831+33263-8263-83805(Top 13%)450(Top 4%)450(Top 8%)
25.2M25.20 mi0.35 mi3839-8265-2265-25074(Top 18%)872(Top 7%)872(Top 16%)
Finish26.22 mi1.02 mi3836+3271-6271-64914(Top 17%)834(Top 7%)834(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21story building
+97ft-345ft

Overall

4473

Females

272

F18-39

272

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5617

Females

441

F18-39

441

10K→15K

6.2 - 9.3 mi

Top 16%
×3story building
+67ft-78ft

Overall

4473

Females

272

F18-39

272

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

4004

Females

234

F18-39

234

20K→Half

12.4 - 13.1 mi

Top 15%
×2story building
+19ft-37ft

Overall

4257

Females

259

F18-39

259

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3962

Females

252

F18-39

252

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

3146

Females

185

F18-39

185

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3641

Females

276

F18-39

276

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3808

Females

328

F18-39

328

21M→35K

21.0 - 21.8 mi

Top 10%
×7story building
+17ft-86ft

Overall

2769

Females

205

F18-39

205

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

4324

Females

480

F18-39

480

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+12ft-82ft

Overall

4018

Females

454

F18-39

454

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3805

Females

450

F18-39

450

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5074

Females

872

F18-39

872

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4914

Females

834

F18-39

834

Passing Analysis

Category:
Athletes Passed
1639
Passed By
871
Net Change
+768
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4604
5K → 10K50486-436#4604#5040
10K → 15K25825+233#5040#4807
15K → 20K27619+257#4807#4550
20K → Half309+21#4550#4529
Half → 25K18031+149#4529#4380
25K → 30K34618+328#4380#4052
30K → 20M8024+56#4052#3996
20M → 21M9043+47#3996#3949
21M → 35K734+69#3949#3880
35K → 23M6665+1#3880#3879
23M → 24M5944+15#3879#3864
24M → 40K5825+33#3864#3831
40K → 25.2M1321-8#3831#3839
25.2M → Finish6057+3#3839#3836
TOTALS1639871+768
📊

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