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BOSTON MARATHON 2025

Ye-Eun Sung

Bib: 26956•F

MA

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

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
9:56/mi
30:52
↑ 97↓ 3451.5%
10K· 6.21 mi
9:51/mi
1:01:28
↑ 79↓ 1380.4%
15K· 9.32 mi
9:23/mi
1:30:37
↑ 67↓ 78
20K· 12.43 mi
9:16/mi
1:59:23
↑ 106↓ 860.1%
Half· 13.11 mi
9:01/mi
2:05:32
↑ 19↓ 370.5%
25K· 15.53 mi
9:24/mi
2:28:19
↑ 66↓ 880.2%
30K· 18.64 mi
9:32/mi
2:57:57
↑ 181↓ 1480.2%
20M
9:27/mi
3:10:47
↑ 64↓ 500.2%
21M
9:47/mi
3:20:34
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
3:27:14
↑ 17↓ 861.7%
23M
9:21/mi
3:38:57
↑ 23↓ 630.6%
24M
8:59/mi
3:47:56
↓ 821.3%
40K· 24.85 mi
9:09/mi
3:55:45
↓ 200.3%
25.2M
9:40/mi
3:59:05
↑ 13↓ 160.2%
Finish· 26.22 mi
8:24/mi
4:07:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:05:32
Pace9:35 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:02:07
Pace9:19 /mi
📊Negative Split: 2.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3130:529:5630:52
9:56
-
10K
6.21 mi12:24:071:01:289:5430:36
9:51
-0:05
15K
9.32 mi12:53:161:30:379:4329:09
9:23
-0:28
20K
12.43 mi13:22:021:59:239:3628:46
9:16
-0:07
Half
13.11 mi13:28:112:05:329:356:09
9:01
-0:15
25K
15.53 mi13:50:582:28:199:3322:47
9:24
+0:23
30K
18.64 mi14:20:362:57:579:3329:38
9:32
+0:08
20M
20.00 mi14:33:263:10:479:3212:50
9:27
-0:05
21M
21.00 mi14:43:133:20:349:339:47
9:47
+0:20
35K
21.75 mi14:49:533:27:149:326:40
8:55
-0:52
23M
23.00 mi15:01:363:38:579:3111:43
9:21
+0:26
24M
24.00 mi15:10:353:47:569:308:59
8:59
-0:22
40K
24.85 mi15:18:243:55:459:297:49
9:09
+0:10
25.2M
25.20 mi15:21:443:59:059:293:20
9:40
+0:31
Finish
26.22 mi15:30:184:07:399:278:34
8:24
-1:16

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

8:24 /mi

Average Pace

9:27 /mi

Slowest Pace

9:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:11

15% of race

Time at Steady Pace

2:58:36

72% of race

Time at Slower Pace

30:52

12% of race

Average Pace: 9:27 /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 mi11:53:3130:529:5630:52
9:56
#25437
10K
6.21 mi12:24:071:01:289:5430:36
9:51
#25168
15K
9.32 mi12:53:161:30:379:4329:09
9:23
#24636
20K
12.43 mi13:22:021:59:239:3628:46
9:16
#24041
Half
13.11 mi13:28:112:05:329:356:09
9:01
#23922
25K
15.53 mi13:50:582:28:199:3322:47
9:24
#23551
30K
18.64 mi14:20:362:57:579:3329:38
9:32
#22937
20M
20.00 mi14:33:263:10:479:3212:50
9:27
#22675
21M
21.00 mi14:43:133:20:349:339:47
9:47
#22406
35K
21.75 mi14:49:533:27:149:326:40
8:55
#22273
23M
23.00 mi15:01:363:38:579:3111:43
9:21
#22024
24M
24.00 mi15:10:353:47:569:308:59
8:59
#21841
40K
24.85 mi15:18:243:55:459:297:49
9:09
#21701
25.2M
25.20 mi15:21:443:59:059:293:20
9:40
#21600
Finish
26.22 mi15:30:184:07:399:278:34
8:24
#21424
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25437104441044423431(Top 82%)9333(Top 76%)9333(Top 171%)
10K6.21 mi3.10 mi25168+26910322+12210322+12224984(Top 88%)10226(Top 84%)10226(Top 187%)
15K9.32 mi3.11 mi24636+53210031+29110031+29123431(Top 82%)9333(Top 76%)9333(Top 171%)
20K12.43 mi3.11 mi24041+5959714+3179714+31722136(Top 78%)8661(Top 71%)8661(Top 158%)
Half13.11 mi0.68 mi23922+1199650+649650+6421910(Top 77%)8546(Top 70%)8546(Top 156%)
25K15.53 mi2.42 mi23551+3719450+2009450+20021539(Top 76%)8385(Top 69%)8385(Top 153%)
30K18.64 mi3.11 mi22937+6149147+3039147+30320104(Top 71%)7717(Top 63%)7717(Top 141%)
20M20.00 mi1.36 mi22675+2629028+1199028+11918938(Top 67%)7237(Top 59%)7237(Top 132%)
21M21.00 mi1.00 mi22406+2698893+1358893+13517442(Top 61%)6512(Top 53%)6512(Top 119%)
35K21.75 mi0.75 mi22273+1338830+638830+6317871(Top 63%)6847(Top 56%)6847(Top 125%)
23M23.00 mi1.25 mi22024+2498731+998731+9918081(Top 64%)7030(Top 57%)7030(Top 129%)
24M24.00 mi1.00 mi21841+1838652+798652+7917332(Top 61%)6680(Top 55%)6680(Top 122%)
40K24.85 mi0.85 mi21701+1408600+528600+5217136(Top 60%)6667(Top 55%)6667(Top 122%)
25.2M25.20 mi0.35 mi21600+1018546+548546+5415562(Top 55%)5886(Top 48%)5886(Top 108%)
Finish26.22 mi1.02 mi21424+1768460+868460+8615683(Top 55%)5865(Top 48%)5865(Top 107%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23431

Females

9333

F18-39

9333

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

24984

Females

10226

F18-39

10226

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23431

Females

9333

F18-39

9333

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22136

Females

8661

F18-39

8661

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21910

Females

8546

F18-39

8546

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21539

Females

8385

F18-39

8385

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20104

Females

7717

F18-39

7717

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

18938

Females

7237

F18-39

7237

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17442

Females

6512

F18-39

6512

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17871

Females

6847

F18-39

6847

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18081

Females

7030

F18-39

7030

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17332

Females

6680

F18-39

6680

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17136

Females

6667

F18-39

6667

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15562

Females

5886

F18-39

5886

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

15683

Females

5865

F18-39

5865

Passing Analysis

Category:
Athletes Passed
4111
Passed By
98
Net Change
+4013
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25437
5K → 10K33465+269#25437#25168
10K → 15K5408+532#25168#24636
15K → 20K5950+595#24636#24041
20K → Half1201+119#24041#23922
Half → 25K3743+371#23922#23551
25K → 30K6195+614#23551#22937
30K → 20M2642+262#22937#22675
20M → 21M2701+269#22675#22406
21M → 35K1363+133#22406#22273
35K → 23M2523+249#22273#22024
23M → 24M1852+183#22024#21841
24M → 40K1422+140#21841#21701
40K → 25.2M1010+101#21701#21600
25.2M → Finish1793+176#21600#21424
TOTALS411198+4013
📊

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