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BOSTON MARATHON 2025

Hee Su Yang

Bib: 2525•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Division (M18-39)
#0 / 5642
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:37
Rank: #2516
Start → 5K
19:37 | 6:19/mi
10K· 6.21 mi
38:37
Rank: #1951 (+565)
5K → 10K
19:00 | 6:07/mi
15K· 9.32 mi
57:31
Rank: #1714 (+237)
10K → 15K
18:54 | 6:05/mi
20K· 12.43 mi
1:17:03
Rank: #1753 (-39)
15K → 20K
19:32 | 6:17/mi
Half· 13.11 mi
1:21:19
Rank: #1780 (-27)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:37:17
Rank: #2000 (-220)
Half → 25K
15:58 | 6:35/mi
30K· 18.64 mi
2:01:26
Rank: #3125 (-1125)
25K → 30K
24:09 | 7:46/mi
20M
2:12:04
Rank: #3506 (-381)
30K → 20M
10:38 | 7:49/mi
21M
2:20:03
Rank: #3666 (-160)
20M → 21M
7:59 | 7:59/mi
35K· 21.75 mi
2:25:13
Rank: #3684 (-18)
21M → 35K
5:10 | 6:54/mi
23M
2:34:33
Rank: #3807 (-123)
35K → 23M
9:20 | 7:27/mi
24M
2:41:57
Rank: #3945 (-138)
23M → 24M
7:24 | 7:24/mi
40K· 24.85 mi
2:48:26
Rank: #4052 (-107)
24M → 40K
6:29 | 7:35/mi
25.2M
2:51:12
Rank: #4080 (-28)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:58:11
Rank: #4087 (-7)
25.2M → Finish
6:59 | 6:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:19
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:36:52
Pace7:23 /mi
📊Positive Split: 19.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3519:376:1919:37
6:19
-
10K
6.21 mi10:39:3538:376:1319:00
6:07
-0:12
15K
9.32 mi10:58:2957:316:1018:54
6:05
-0:02
20K
12.43 mi11:18:011:17:036:1219:32
6:17
+0:12
Half
13.11 mi11:22:171:21:196:124:16
6:15
-0:02
25K
15.53 mi11:38:151:37:176:1615:58
6:35
+0:20
30K
18.64 mi12:02:242:01:266:3124:09
7:46
+1:11
20M
20.00 mi12:13:022:12:046:3610:38
7:49
+0:03
21M
21.00 mi12:21:012:20:036:407:59
7:59
+0:10
35K
21.75 mi12:26:112:25:136:415:10
6:54
-1:05
23M
23.00 mi12:35:312:34:336:439:20
7:27
+0:33
24M
24.00 mi12:42:552:41:576:457:24
7:24
-0:03
40K
24.85 mi12:49:242:48:266:476:29
7:35
+0:11
25.2M
25.20 mi12:52:102:51:126:482:46
8:01
+0:26
Finish
26.22 mi12:59:092:58:116:486:59
6:51
-1:10

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

6:05 /mi

Average Pace

6:48 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:19

46% of race

Time at Steady Pace

28:07

16% of race

Time at Slower Pace

1:08:45

39% of race

Average Pace: 6:48 /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 mi10:20:3519:376:1919:37
6:19
#2516
10K
6.21 mi10:39:3538:376:1319:00
6:07
#1951
15K
9.32 mi10:58:2957:316:1018:54
6:05
#1714
20K
12.43 mi11:18:011:17:036:1219:32
6:17
#1753
Half
13.11 mi11:22:171:21:196:124:16
6:15
#1780
25K
15.53 mi11:38:151:37:176:1615:58
6:35
#2000
30K
18.64 mi12:02:242:01:266:3124:09
7:46
#3125
20M
20.00 mi12:13:022:12:046:3610:38
7:49
#3506
21M
21.00 mi12:21:012:20:036:407:59
7:59
#3666
35K
21.75 mi12:26:112:25:136:415:10
6:54
#3684
23M
23.00 mi12:35:312:34:336:439:20
7:27
#3807
24M
24.00 mi12:42:552:41:576:457:24
7:24
#3945
40K
24.85 mi12:49:242:48:266:476:29
7:35
#4052
25.2M
25.20 mi12:52:102:51:126:482:46
8:01
#4080
Finish
26.22 mi12:59:092:58:116:486:59
6:51
#4087
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2516239723971315(Top 5%)1248(Top 8%)1248(Top 22%)
10K6.21 mi3.10 mi1951+5651859+5381859+5381529(Top 5%)1452(Top 9%)1452(Top 26%)
15K9.32 mi3.11 mi1714+2371630+2291630+2291315(Top 5%)1248(Top 8%)1248(Top 22%)
20K12.43 mi3.11 mi1753-391666-361666-361953(Top 7%)1860(Top 12%)1860(Top 33%)
Half13.11 mi0.68 mi1780-271691-251691-252257(Top 8%)2158(Top 13%)2158(Top 38%)
25K15.53 mi2.42 mi2000-2201907-2161907-2163375(Top 12%)3189(Top 20%)3189(Top 57%)
30K18.64 mi3.11 mi3125-11252972-10652972-10659707(Top 34%)7530(Top 47%)7530(Top 133%)
20M20.00 mi1.36 mi3506-3813311-3393311-3399163(Top 32%)7074(Top 44%)7074(Top 125%)
21M21.00 mi1.00 mi3666-1603449-1383449-1387222(Top 25%)5796(Top 36%)5796(Top 103%)
35K21.75 mi0.75 mi3684-183463-143463-144724(Top 17%)4167(Top 26%)4167(Top 74%)
23M23.00 mi1.25 mi3807-1233562-993562-996348(Top 22%)5179(Top 32%)5179(Top 92%)
24M24.00 mi1.00 mi3945-1383668-1063668-1067000(Top 25%)5515(Top 34%)5515(Top 98%)
40K24.85 mi0.85 mi4052-1073757-893757-897252(Top 26%)5558(Top 35%)5558(Top 99%)
25.2M25.20 mi0.35 mi4080-283772-153772-155963(Top 21%)4689(Top 29%)4689(Top 83%)
Finish26.22 mi1.02 mi4087-73774-23774-24786(Top 17%)3970(Top 25%)3970(Top 70%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1315

Males

1248

M18-39

1248

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1529

Males

1452

M18-39

1452

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1315

Males

1248

M18-39

1248

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1953

Males

1860

M18-39

1860

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2257

Males

2158

M18-39

2158

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3375

Males

3189

M18-39

3189

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9707

Males

7530

M18-39

7530

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9163

Males

7074

M18-39

7074

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

7222

Males

5796

M18-39

5796

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4724

Males

4167

M18-39

4167

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6348

Males

5179

M18-39

5179

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

7000

Males

5515

M18-39

5515

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7252

Males

5558

M18-39

5558

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5963

Males

4689

M18-39

4689

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4786

Males

3970

M18-39

3970

Passing Analysis

Category:
Athletes Passed
1075
Passed By
2646
Net Change
-1571
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2516
5K → 10K5716+565#2516#1951
10K → 15K2392+237#1951#1714
15K → 20K4382-39#1714#1753
20K → Half229-27#1753#1780
Half → 25K17237-220#1780#2000
25K → 30K41129-1125#2000#3125
30K → 20M17398-381#3125#3506
20M → 21M11171-160#3506#3666
21M → 35K2745-18#3666#3684
35K → 23M38161-123#3684#3807
23M → 24M22160-138#3807#3945
24M → 40K22129-107#3945#4052
40K → 25.2M1341-28#4052#4080
25.2M → Finish4956-7#4080#4087
TOTALS10752646-1571
📊

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