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BOSTON MARATHON 2025

Sim Jaan Yeu

Bib: 11589•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
7:12/mi
22:22
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
44:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:07/mi
1:06:42
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:29:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:11/mi
1:34:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:22/mi
1:51:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:15:47
↑ 181↓ 1480.2%
20M
7:49/mi
2:26:25
↑ 64↓ 500.2%
21M
8:14/mi
2:34:39
↑ 106↓ 241.6%
35K· 21.75 mi
8:56/mi
2:41:20
↑ 17↓ 861.7%
23M
9:30/mi
2:53:14
↑ 23↓ 630.6%
24M
9:54/mi
3:03:08
↓ 821.3%
40K· 24.85 mi
11:22/mi
3:12:51
↓ 200.3%
25.2M
13:41/mi
3:17:34
↑ 13↓ 160.2%
Finish· 26.22 mi
13:44/mi
3:31:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:07
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:57:27
Pace8:58 /mi
📊Positive Split: 24.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5722:227:1222:22
7:12
-
10K
6.21 mi11:11:0944:347:1022:12
7:09
-0:03
15K
9.32 mi11:33:171:06:427:0922:08
7:07
-0:02
20K
12.43 mi11:55:481:29:137:1122:31
7:15
+0:08
Half
13.11 mi12:00:421:34:077:114:54
7:11
-0:04
25K
15.53 mi12:18:341:51:597:1317:52
7:22
+0:11
30K
18.64 mi12:42:222:15:477:1723:48
7:40
+0:18
20M
20.00 mi12:53:002:26:257:1910:38
7:49
+0:09
21M
21.00 mi13:01:142:34:397:228:14
8:14
+0:25
35K
21.75 mi13:07:552:41:207:256:41
8:56
+0:42
23M
23.00 mi13:19:492:53:147:3211:54
9:30
+0:34
24M
24.00 mi13:29:433:03:087:389:54
9:54
+0:24
40K
24.85 mi13:39:263:12:517:469:43
11:22
+1:28
25.2M
25.20 mi13:44:093:17:347:504:43
13:41
+2:19
Finish
26.22 mi13:58:093:31:348:0514:00
13:44
+0:03

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

7:07 /mi

Average Pace

8:05 /mi

Slowest Pace

13:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:34:39

73% of race

Time at Slower Pace

56:55

27% of race

Average Pace: 8:04 /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 mi10:48:5722:227:1222:22
7:12
#9452
10K
6.21 mi11:11:0944:347:1022:12
7:09
#9213
15K
9.32 mi11:33:171:06:427:0922:08
7:07
#8960
20K
12.43 mi11:55:481:29:137:1122:31
7:15
#8793
Half
13.11 mi12:00:421:34:077:114:54
7:11
#8790
25K
15.53 mi12:18:341:51:597:1317:52
7:22
#8746
30K
18.64 mi12:42:222:15:477:1723:48
7:40
#8694
20M
20.00 mi12:53:002:26:257:1910:38
7:49
#8711
21M
21.00 mi13:01:142:34:397:228:14
8:14
#8675
35K
21.75 mi13:07:552:41:207:256:41
8:56
#9075
23M
23.00 mi13:19:492:53:147:3211:54
9:30
#9771
24M
24.00 mi13:29:433:03:087:389:54
9:54
#10479
40K
24.85 mi13:39:263:12:517:469:43
11:22
#11334
25.2M
25.20 mi13:44:093:17:347:504:43
13:41
#11887
Finish
26.22 mi13:58:093:31:348:0514:00
13:44
#13631
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9452786178618503(Top 30%)7251(Top 45%)7251(Top 363%)
10K6.21 mi3.10 mi9213+2397729+1327729+1329038(Top 32%)7629(Top 47%)7629(Top 382%)
15K9.32 mi3.11 mi8960+2537564+1657564+1658503(Top 30%)7251(Top 45%)7251(Top 363%)
20K12.43 mi3.11 mi8793+1677439+1257439+1258600(Top 30%)7229(Top 45%)7229(Top 362%)
Half13.11 mi0.68 mi8790+37430+97430+98943(Top 31%)7465(Top 46%)7465(Top 374%)
25K15.53 mi2.42 mi8746+447389+417389+418902(Top 31%)7291(Top 45%)7291(Top 365%)
30K18.64 mi3.11 mi8694+527304+857304+858910(Top 31%)7097(Top 44%)7097(Top 356%)
20M20.00 mi1.36 mi8711-177264+407264+409196(Top 32%)7107(Top 44%)7107(Top 356%)
21M21.00 mi1.00 mi8675+367210+547210+548792(Top 31%)6711(Top 42%)6711(Top 336%)
35K21.75 mi0.75 mi9075-4007423-2137423-21317885(Top 63%)10988(Top 68%)10988(Top 551%)
23M23.00 mi1.25 mi9771-6967754-3317754-33118705(Top 66%)11300(Top 70%)11300(Top 566%)
24M24.00 mi1.00 mi10479-7088076-3228076-32221040(Top 74%)12356(Top 77%)12356(Top 619%)
40K24.85 mi0.85 mi11334-8558438-3628438-36223873(Top 84%)13701(Top 85%)13701(Top 686%)
25.2M25.20 mi0.35 mi11887-5538692-2548692-25425886(Top 91%)14685(Top 91%)14685(Top 736%)
Finish26.22 mi1.02 mi13631-17449477-7859477-78527956(Top 98%)15815(Top 98%)15815(Top 792%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8503

Males

7251

M50-54

7251

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

9038

Males

7629

M50-54

7629

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8503

Males

7251

M50-54

7251

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8600

Males

7229

M50-54

7229

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8943

Males

7465

M50-54

7465

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8902

Males

7291

M50-54

7291

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8910

Males

7097

M50-54

7097

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

9196

Males

7107

M50-54

7107

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8792

Males

6711

M50-54

6711

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17885

Males

10988

M50-54

10988

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18705

Males

11300

M50-54

11300

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

21040

Males

12356

M50-54

12356

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23873

Males

13701

M50-54

13701

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25886

Males

14685

M50-54

14685

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

27956

Males

15815

M50-54

15815

Passing Analysis

Category:
Athletes Passed
1609
Passed By
5786
Net Change
-4179
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9452
5K → 10K373134+239#9452#9213
10K → 15K31562+253#9213#8960
15K → 20K24679+167#8960#8793
20K → Half2825+3#8793#8790
Half → 25K169125+44#8790#8746
25K → 30K232180+52#8746#8694
30K → 20M97114-17#8694#8711
20M → 21M10670+36#8711#8675
21M → 35K10410-400#8675#9075
35K → 23M17713-696#9075#9771
23M → 24M13719-708#9771#10479
24M → 40K1856-855#10479#11334
40K → 25.2M1554-553#11334#11887
25.2M → Finish11745-1744#11887#13631
TOTALS16095786-4179
📊

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