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BOSTON MARATHON 2025

Soonyoung Jang

Bib: 19998•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
8:55/mi
27:41
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
54:32
↑ 79↓ 1380.4%
15K· 9.32 mi
9:03/mi
1:22:38
↑ 67↓ 78
20K· 12.43 mi
9:10/mi
1:51:06
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
1:57:17
↑ 19↓ 370.5%
25K· 15.53 mi
9:25/mi
2:20:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:45/mi
2:50:23
↑ 181↓ 1480.2%
20M
9:54/mi
3:03:50
↑ 64↓ 500.2%
21M
10:29/mi
3:14:19
↑ 106↓ 241.6%
35K· 21.75 mi
10:11/mi
3:21:56
↑ 17↓ 861.7%
23M
11:01/mi
3:35:43
↑ 23↓ 630.6%
24M
10:31/mi
3:46:14
↓ 821.3%
40K· 24.85 mi
10:33/mi
3:55:15
↓ 200.3%
25.2M
12:08/mi
3:59:26
↑ 13↓ 160.2%
Finish· 26.22 mi
9:52/mi
4:09:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:17
Pace8:57 /mi
2nd Half
Distance13.11 mi
Time2:12:12
Pace10:05 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:0027:418:5527:41
8:55
-
10K
6.21 mi11:46:5154:328:4726:51
8:39
-0:16
15K
9.32 mi12:14:571:22:388:5228:06
9:03
+0:24
20K
12.43 mi12:43:251:51:068:5628:28
9:10
+0:07
Half
13.11 mi12:49:361:57:178:576:11
9:04
-0:06
25K
15.53 mi13:12:262:20:079:0122:50
9:25
+0:21
30K
18.64 mi13:42:422:50:239:0830:16
9:45
+0:20
20M
20.00 mi13:56:093:03:509:1113:27
9:54
+0:09
21M
21.00 mi14:06:383:14:199:1510:29
10:29
+0:35
35K
21.75 mi14:14:153:21:569:177:37
10:11
-0:18
23M
23.00 mi14:28:023:35:439:2313:47
11:01
+0:50
24M
24.00 mi14:38:333:46:149:2610:31
10:31
-0:30
40K
24.85 mi14:47:343:55:159:289:01
10:33
+0:02
25.2M
25.20 mi14:51:453:59:269:304:11
12:08
+1:35
Finish
26.22 mi15:01:484:09:299:3110:03
9:52
-2:16

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

8:39 /mi

Average Pace

9:31 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:17

47% of race

Time at Steady Pace

1:24:13

34% of race

Time at Slower Pace

47:59

19% of race

Average Pace: 9:31 /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 mi11:20:0027:418:5527:41
8:55
#22047
10K
6.21 mi11:46:5154:328:4726:51
8:39
#21328
15K
9.32 mi12:14:571:22:388:5228:06
9:03
#21631
20K
12.43 mi12:43:251:51:068:5628:28
9:10
#21657
Half
13.11 mi12:49:361:57:178:576:11
9:04
#21677
25K
15.53 mi13:12:262:20:079:0122:50
9:25
#21643
30K
18.64 mi13:42:422:50:239:0830:16
9:45
#21492
20M
20.00 mi13:56:093:03:509:1113:27
9:54
#21421
21M
21.00 mi14:06:383:14:199:1510:29
10:29
#21333
35K
21.75 mi14:14:153:21:569:177:37
10:11
#21397
23M
23.00 mi14:28:023:35:439:2313:47
11:01
#21551
24M
24.00 mi14:38:333:46:149:2610:31
10:31
#21607
40K
24.85 mi14:47:343:55:159:289:01
10:33
#21617
25.2M
25.20 mi14:51:453:59:269:304:11
12:08
#21656
Finish
26.22 mi15:01:484:09:299:3110:03
9:52
#21667
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi220478653865322240(Top 78%)8686(Top 71%)8686(Top 479%)
10K6.21 mi3.10 mi21328+7198234+4198234+41920578(Top 72%)7791(Top 64%)7791(Top 430%)
15K9.32 mi3.11 mi21631-3038386-1528386-15222240(Top 78%)8686(Top 71%)8686(Top 479%)
20K12.43 mi3.11 mi21657-268412-268412-2621753(Top 77%)8461(Top 69%)8461(Top 467%)
Half13.11 mi0.68 mi21677-208425-138425-1322110(Top 78%)8667(Top 71%)8667(Top 478%)
25K15.53 mi2.42 mi21643+348406+198406+1921617(Top 76%)8437(Top 69%)8437(Top 465%)
30K18.64 mi3.11 mi21492+1518353+538353+5320825(Top 73%)8135(Top 67%)8135(Top 449%)
20M20.00 mi1.36 mi21421+718338+158338+1520626(Top 73%)8157(Top 67%)8157(Top 450%)
21M21.00 mi1.00 mi21333+888299+398299+3919981(Top 70%)7903(Top 65%)7903(Top 436%)
35K21.75 mi0.75 mi21397-648348-498348-4922390(Top 79%)9227(Top 75%)9227(Top 509%)
23M23.00 mi1.25 mi21551-1548461-1138461-11323246(Top 82%)9732(Top 80%)9732(Top 537%)
24M24.00 mi1.00 mi21607-568513-528513-5222873(Top 81%)9576(Top 78%)9576(Top 528%)
40K24.85 mi0.85 mi21617-108544-318544-3122050(Top 78%)9222(Top 75%)9222(Top 509%)
25.2M25.20 mi0.35 mi21656-398581-378581-3723510(Top 83%)9913(Top 81%)9913(Top 547%)
Finish26.22 mi1.02 mi21667-118600-198600-1922518(Top 79%)9423(Top 77%)9423(Top 520%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22240

Females

8686

F45-49

8686

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20578

Females

7791

F45-49

7791

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22240

Females

8686

F45-49

8686

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21753

Females

8461

F45-49

8461

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22110

Females

8667

F45-49

8667

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21617

Females

8437

F45-49

8437

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20825

Females

8135

F45-49

8135

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20626

Females

8157

F45-49

8157

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19981

Females

7903

F45-49

7903

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22390

Females

9227

F45-49

9227

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23246

Females

9732

F45-49

9732

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

22873

Females

9576

F45-49

9576

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22050

Females

9222

F45-49

9222

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23510

Females

9913

F45-49

9913

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22518

Females

9423

F45-49

9423

Passing Analysis

Category:
Athletes Passed
2017
Passed By
1637
Net Change
+380
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22047
5K → 10K77253+719#22047#21328
10K → 15K118421-303#21328#21631
15K → 20K190216-26#21631#21657
20K → Half2545-20#21657#21677
Half → 25K161127+34#21677#21643
25K → 30K273122+151#21643#21492
30K → 20M13362+71#21492#21421
20M → 21M12133+88#21421#21333
21M → 35K3094-64#21333#21397
35K → 23M56210-154#21397#21551
23M → 24M2985-56#21551#21607
24M → 40K5363-10#21607#21617
40K → 25.2M1251-39#21617#21656
25.2M → Finish4455-11#21656#21667
TOTALS20171637+380
📊

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