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BOSTON MARATHON 2025

Yung Hae Cho

Bib: 21841•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F50-54)
#0 / 1303
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:13
Rank: #17491
Start → 5K
25:13 | 8:07/mi
10K· 6.21 mi
50:26
Rank: #17382 (+109)
5K → 10K
25:13 | 8:07/mi
15K· 9.32 mi
1:16:01
Rank: #17461 (-79)
10K → 15K
25:35 | 8:14/mi
20K· 12.43 mi
1:41:51
Rank: #17320 (+141)
15K → 20K
25:50 | 8:19/mi
Half· 13.11 mi
1:47:26
Rank: #17298 (+22)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:08:10
Rank: #17278 (+20)
Half → 25K
20:44 | 8:33/mi
30K· 18.64 mi
2:37:06
Rank: #17651 (-373)
25K → 30K
28:56 | 9:19/mi
20M
2:49:23
Rank: #17578 (+73)
30K → 20M
12:17 | 9:02/mi
21M
2:59:24
Rank: #17642 (-64)
20M → 21M
10:01 | 10:01/mi
35K· 21.75 mi
3:05:54
Rank: #17591 (+51)
21M → 35K
6:30 | 8:41/mi
23M
3:17:19
Rank: #17537 (+54)
35K → 23M
11:25 | 9:07/mi
24M
3:26:11
Rank: #17484 (+53)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:34:03
Rank: #17483 (+1)
24M → 40K
7:52 | 9:12/mi
25.2M
3:37:30
Rank: #17474 (+9)
40K → 25.2M
3:27 | 10:00/mi
Finish· 26.22 mi
3:46:19
Rank: #17458 (+16)
25.2M → Finish
8:49 | 8:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:26
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:58:53
Pace9:04 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3725:138:0725:13
8:07
-
10K
6.21 mi11:46:5050:268:0725:13
8:07
0:00
15K
9.32 mi12:12:251:16:018:0925:35
8:14
+0:07
20K
12.43 mi12:38:151:41:518:1225:50
8:19
+0:05
Half
13.11 mi12:43:501:47:268:125:35
8:11
-0:08
25K
15.53 mi13:04:342:08:108:1520:44
8:33
+0:22
30K
18.64 mi13:33:302:37:068:2628:56
9:19
+0:46
20M
20.00 mi13:45:472:49:238:2812:17
9:02
-0:17
21M
21.00 mi13:55:482:59:248:3310:01
10:01
+0:59
35K
21.75 mi14:02:183:05:548:336:30
8:41
-1:20
23M
23.00 mi14:13:433:17:198:3511:25
9:07
+0:26
24M
24.00 mi14:22:353:26:118:358:52
8:52
-0:15
40K
24.85 mi14:30:273:34:038:377:52
9:12
+0:20
25.2M
25.20 mi14:33:543:37:308:383:27
10:00
+0:48
Finish
26.22 mi14:42:433:46:198:388:49
8:39
-1:21

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

8:07 /mi

Average Pace

8:38 /mi

Slowest Pace

10:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:26

47% of race

Time at Steady Pace

44:55

20% of race

Time at Slower Pace

1:13:58

33% of race

Average Pace: 8:38 /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 mi11:21:3725:138:0725:13
8:07
#17491
10K
6.21 mi11:46:5050:268:0725:13
8:07
#17382
15K
9.32 mi12:12:251:16:018:0925:35
8:14
#17461
20K
12.43 mi12:38:151:41:518:1225:50
8:19
#17320
Half
13.11 mi12:43:501:47:268:125:35
8:11
#17298
25K
15.53 mi13:04:342:08:108:1520:44
8:33
#17278
30K
18.64 mi13:33:302:37:068:2628:56
9:19
#17651
20M
20.00 mi13:45:472:49:238:2812:17
9:02
#17578
21M
21.00 mi13:55:482:59:248:3310:01
10:01
#17642
35K
21.75 mi14:02:183:05:548:336:30
8:41
#17591
23M
23.00 mi14:13:433:17:198:3511:25
9:07
#17537
24M
24.00 mi14:22:353:26:118:358:52
8:52
#17484
40K
24.85 mi14:30:273:34:038:377:52
9:12
#17483
25.2M
25.20 mi14:33:543:37:308:383:27
10:00
#17474
Finish
26.22 mi14:42:433:46:198:388:49
8:39
#17458
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi174916026602617619(Top 62%)6091(Top 50%)6091(Top 467%)
10K6.21 mi3.10 mi17382+1095961+655961+6517336(Top 61%)5903(Top 48%)5903(Top 453%)
15K9.32 mi3.11 mi17461-795986-255986-2517619(Top 62%)6091(Top 50%)6091(Top 467%)
20K12.43 mi3.11 mi17320+1415927+595927+5917024(Top 60%)5791(Top 47%)5791(Top 444%)
Half13.11 mi0.68 mi17298+225924+35924+317237(Top 61%)5902(Top 48%)5902(Top 453%)
25K15.53 mi2.42 mi17278+205932-85932-817501(Top 62%)6138(Top 50%)6138(Top 471%)
30K18.64 mi3.11 mi17651-3736213-2816213-28119173(Top 68%)7211(Top 59%)7211(Top 553%)
20M20.00 mi1.36 mi17578+736193+206193+2017028(Top 60%)6150(Top 50%)6150(Top 472%)
21M21.00 mi1.00 mi17642-646239-466239-4618369(Top 65%)6987(Top 57%)6987(Top 536%)
35K21.75 mi0.75 mi17591+516235+46235+416648(Top 59%)6144(Top 50%)6144(Top 472%)
23M23.00 mi1.25 mi17537+546246-116246-1116938(Top 60%)6413(Top 52%)6413(Top 492%)
24M24.00 mi1.00 mi17484+536238+86238+816687(Top 59%)6312(Top 52%)6312(Top 484%)
40K24.85 mi0.85 mi17483+16269-316269-3117367(Top 61%)6785(Top 55%)6785(Top 521%)
25.2M25.20 mi0.35 mi17474+96274-56274-517102(Top 60%)6640(Top 54%)6640(Top 510%)
Finish26.22 mi1.02 mi17458+166288-146288-1417200(Top 61%)6662(Top 54%)6662(Top 511%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

17619

Females

6091

F50-54

6091

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

17336

Females

5903

F50-54

5903

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

17619

Females

6091

F50-54

6091

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

17024

Females

5791

F50-54

5791

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

17237

Females

5902

F50-54

5902

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17501

Females

6138

F50-54

6138

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19173

Females

7211

F50-54

7211

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17028

Females

6150

F50-54

6150

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18369

Females

6987

F50-54

6987

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16648

Females

6144

F50-54

6144

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

16938

Females

6413

F50-54

6413

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16687

Females

6312

F50-54

6312

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17367

Females

6785

F50-54

6785

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17102

Females

6640

F50-54

6640

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17200

Females

6662

F50-54

6662

Passing Analysis

Category:
Athletes Passed
1818
Passed By
1785
Net Change
+33
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17491
5K → 10K336227+109#17491#17382
10K → 15K177256-79#17382#17461
15K → 20K250109+141#17461#17320
20K → Half4422+22#17320#17298
Half → 25K176156+20#17298#17278
25K → 30K120493-373#17278#17651
30K → 20M14370+73#17651#17578
20M → 21M86150-64#17578#17642
21M → 35K7827+51#17642#17591
35K → 23M13985+54#17591#17537
23M → 24M10047+53#17537#17484
24M → 40K7069+1#17484#17483
40K → 25.2M3021+9#17483#17474
25.2M → Finish6953+16#17474#17458
TOTALS18181785+33
📊

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