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BOSTON MARATHON 2025

Hannah Kim

Bib: 15365•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 27%
Gender (Female)
#0 / 12228
Top 10%
Division (F18-39)
#0 / 5469
Top 19%
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
7:43/mi
23:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:26/mi
47:02
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:10:00
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:32:51
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:37:44
↑ 19↓ 370.5%
25K· 15.53 mi
7:15/mi
1:55:19
↑ 66↓ 880.2%
30K· 18.64 mi
7:22/mi
2:18:11
↑ 181↓ 1480.2%
20M
7:24/mi
2:28:15
↑ 64↓ 500.2%
21M
7:40/mi
2:35:55
↑ 106↓ 241.6%
35K· 21.75 mi
6:57/mi
2:41:07
↑ 17↓ 861.7%
23M
7:12/mi
2:50:08
↑ 23↓ 630.6%
24M
7:01/mi
2:57:09
↓ 821.3%
40K· 24.85 mi
7:10/mi
3:03:17
↓ 200.3%
25.2M
7:35/mi
3:05:54
↑ 13↓ 160.2%
Finish· 26.22 mi
6:39/mi
3:12:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:44
Pace7:27 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:34:57
Pace7:15 /mi
📊Negative Split: 2.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0923:577:4323:57
7:43
-
10K
6.21 mi11:40:1447:027:3423:05
7:26
-0:17
15K
9.32 mi12:03:121:10:007:3122:58
7:24
-0:02
20K
12.43 mi12:26:031:32:517:2822:51
7:21
-0:03
Half
13.11 mi12:30:561:37:447:274:53
7:09
-0:12
25K
15.53 mi12:48:311:55:197:2517:35
7:15
+0:06
30K
18.64 mi13:11:232:18:117:2522:52
7:22
+0:07
20M
20.00 mi13:21:272:28:157:2510:04
7:24
+0:02
21M
21.00 mi13:29:072:35:557:257:40
7:40
+0:16
35K
21.75 mi13:34:192:41:077:255:12
6:57
-0:43
23M
23.00 mi13:43:202:50:087:249:01
7:12
+0:15
24M
24.00 mi13:50:212:57:097:237:01
7:01
-0:11
40K
24.85 mi13:56:293:03:177:226:08
7:10
+0:09
25.2M
25.20 mi13:59:063:05:547:232:37
7:35
+0:25
Finish
26.22 mi14:05:533:12:417:216:47
6:39
-0:56

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

6:39 /mi

Average Pace

7:21 /mi

Slowest Pace

7:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:37

29% of race

Time at Steady Pace

2:16:04

71% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi11:17:0923:577:4323:57
7:43
#14048
10K
6.21 mi11:40:1447:027:3423:05
7:26
#12744
15K
9.32 mi12:03:121:10:007:3122:58
7:24
#12078
20K
12.43 mi12:26:031:32:517:2822:51
7:21
#11406
Half
13.11 mi12:30:561:37:447:274:53
7:09
#11266
25K
15.53 mi12:48:311:55:197:2517:35
7:15
#10645
30K
18.64 mi13:11:232:18:117:2522:52
7:22
#9811
20M
20.00 mi13:21:272:28:157:2510:04
7:24
#9490
21M
21.00 mi13:29:072:35:557:257:40
7:40
#9193
35K
21.75 mi13:34:192:41:077:255:12
6:57
#8989
23M
23.00 mi13:43:202:50:087:249:01
7:12
#8617
24M
24.00 mi13:50:212:57:097:237:01
7:01
#8335
40K
24.85 mi13:56:293:03:177:226:08
7:10
#8165
25.2M
25.20 mi13:59:063:05:547:232:37
7:35
#8073
Finish
26.22 mi14:05:533:12:417:216:47
6:39
#7800
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi140483934393410801(Top 38%)2264(Top 19%)2264(Top 41%)
10K6.21 mi3.10 mi12744+13043199+7353199+73511456(Top 40%)2535(Top 21%)2535(Top 46%)
15K9.32 mi3.11 mi12078+6662880+3192880+31910801(Top 38%)2264(Top 19%)2264(Top 41%)
20K12.43 mi3.11 mi11406+6722556+3242556+3249509(Top 33%)1736(Top 14%)1736(Top 32%)
Half13.11 mi0.68 mi11266+1402480+762480+768773(Top 31%)1385(Top 11%)1385(Top 25%)
25K15.53 mi2.42 mi10645+6212201+2792201+2798021(Top 28%)1225(Top 10%)1225(Top 22%)
30K18.64 mi3.11 mi9811+8341872+3291872+3296826(Top 24%)947(Top 8%)947(Top 17%)
20M20.00 mi1.36 mi9490+3211767+1051767+1056464(Top 23%)954(Top 8%)954(Top 17%)
21M21.00 mi1.00 mi9193+2971658+1091658+1095517(Top 19%)766(Top 6%)766(Top 14%)
35K21.75 mi0.75 mi8989+2041590+681590+685116(Top 18%)648(Top 5%)648(Top 12%)
23M23.00 mi1.25 mi8617+3721478+1121478+1124919(Top 17%)655(Top 5%)655(Top 12%)
24M24.00 mi1.00 mi8335+2821397+811397+814765(Top 17%)665(Top 5%)665(Top 12%)
40K24.85 mi0.85 mi8165+1701363+341363+344948(Top 17%)762(Top 6%)762(Top 14%)
25.2M25.20 mi0.35 mi8073+921346+171346+173918(Top 14%)552(Top 5%)552(Top 10%)
Finish26.22 mi1.02 mi7800+2731277+691277+693680(Top 13%)478(Top 4%)478(Top 9%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10801

Females

2264

F18-39

2264

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11456

Females

2535

F18-39

2535

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10801

Females

2264

F18-39

2264

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9509

Females

1736

F18-39

1736

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8773

Females

1385

F18-39

1385

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

8021

Females

1225

F18-39

1225

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6826

Females

947

F18-39

947

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6464

Females

954

F18-39

954

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5517

Females

766

F18-39

766

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

5116

Females

648

F18-39

648

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4919

Females

655

F18-39

655

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4765

Females

665

F18-39

665

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4948

Females

762

F18-39

762

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3918

Females

552

F18-39

552

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3680

Females

478

F18-39

478

Passing Analysis

Category:
Athletes Passed
6315*
Passed By
67
Net Change
+6248
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14048
5K → 10K132319+1304#14048#12744
10K → 15K68620+666#12744#12078
15K → 20K6786+672#12078#11406
20K → Half1422+140#11406#11266
Half → 25K6210+621#11266#10645
25K → 30K834*0+834#10645#9811
30K → 20M3243+321#9811#9490
20M → 21M3014+297#9490#9193
21M → 35K2040+204#9193#8989
35K → 23M3753+372#8989#8617
23M → 24M2842+282#8617#8335
24M → 40K1733+170#8335#8165
40K → 25.2M942+92#8165#8073
25.2M → Finish2763+273#8073#7800
TOTALS6315*67+6248

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

📊

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