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BOSTON MARATHON 2025

Henry Wu

Bib: 29521•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
8:04/mi
25:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:06/mi
50:14
↑ 79↓ 1380.4%
15K· 9.32 mi
8:19/mi
1:16:05
↑ 67↓ 78
20K· 12.43 mi
9:46/mi
1:46:26
↑ 106↓ 860.1%
Half· 13.11 mi
10:46/mi
1:53:47
↑ 19↓ 370.5%
25K· 15.53 mi
12:26/mi
2:23:55
↑ 66↓ 880.2%
30K· 18.64 mi
11:39/mi
3:00:07
↑ 181↓ 1480.2%
20M
11:51/mi
3:16:13
↑ 64↓ 500.2%
21M
12:01/mi
3:28:14
↑ 106↓ 241.6%
35K· 21.75 mi
10:54/mi
3:36:23
↑ 17↓ 861.7%
23M
11:50/mi
3:51:12
↑ 23↓ 630.6%
24M
10:43/mi
4:01:55
↓ 821.3%
40K· 24.85 mi
11:00/mi
4:11:19
↓ 200.3%
25.2M
10:00/mi
4:14:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:41/mi
4:22:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:47
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:28:49
Pace11:21 /mi
📊Positive Split: 30.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2425:038:0425:03
8:04
-
10K
6.21 mi12:08:3550:148:0525:11
8:06
+0:02
15K
9.32 mi12:34:261:16:058:1025:51
8:19
+0:13
20K
12.43 mi13:04:471:46:268:3430:21
9:46
+1:27
Half
13.11 mi13:12:081:53:478:417:21
10:46
+1:00
25K
15.53 mi13:42:162:23:559:1630:08
12:26
+1:40
30K
18.64 mi14:18:283:00:079:4036:12
11:39
-0:47
20M
20.00 mi14:34:343:16:139:4916:06
11:51
+0:12
21M
21.00 mi14:46:353:28:149:5512:01
12:01
+0:10
35K
21.75 mi14:54:443:36:239:578:09
10:54
-1:07
23M
23.00 mi15:09:333:51:1210:0314:49
11:50
+0:56
24M
24.00 mi15:20:164:01:5510:0510:43
10:43
-1:07
40K
24.85 mi15:29:404:11:1910:079:24
11:00
+0:17
25.2M
25.20 mi15:33:074:14:4610:073:27
10:00
-1:00
Finish
26.22 mi15:40:574:22:3610:017:50
7:41
-2:19

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

7:41 /mi

Average Pace

10:01 /mi

Slowest Pace

12:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:16

44% of race

Time at Steady Pace

39:04

15% of race

Time at Slower Pace

1:49:16

42% of race

Average Pace: 10:01 /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 mi11:43:2425:038:0425:03
8:04
#17100
10K
6.21 mi12:08:3550:148:0525:11
8:06
#17154
15K
9.32 mi12:34:261:16:058:1025:51
8:19
#17507
20K
12.43 mi13:04:471:46:268:3430:21
9:46
#19676
Half
13.11 mi13:12:081:53:478:417:21
10:46
#20295
25K
15.53 mi13:42:162:23:559:1630:08
12:26
#22670
30K
18.64 mi14:18:283:00:079:4036:12
11:39
#23279
20M
20.00 mi14:34:343:16:139:4916:06
11:51
#23463
21M
21.00 mi14:46:353:28:149:5512:01
12:01
#23488
35K
21.75 mi14:54:443:36:239:578:09
10:54
#23498
23M
23.00 mi15:09:333:51:1210:0314:49
11:50
#23617
24M
24.00 mi15:20:164:01:5510:0510:43
10:43
#23607
40K
24.85 mi15:29:404:11:1910:079:24
11:00
#23606
25.2M
25.20 mi15:33:074:14:4610:073:27
10:00
#23521
Finish
26.22 mi15:40:574:22:3610:017:50
7:41
#23222
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17100112571125718187(Top 64%)11707(Top 73%)11707(Top 207%)
10K6.21 mi3.10 mi17154-5411288-3111288-3117236(Top 61%)11345(Top 70%)11345(Top 201%)
15K9.32 mi3.11 mi17507-35311440-15211440-15218187(Top 64%)11707(Top 73%)11707(Top 207%)
20K12.43 mi3.11 mi19676-216912332-89212332-89223679(Top 83%)14083(Top 87%)14083(Top 250%)
Half13.11 mi0.68 mi20295-61912589-25712589-25726203(Top 92%)15192(Top 94%)15192(Top 269%)
25K15.53 mi2.42 mi22670-237513650-106113650-106126868(Top 95%)15445(Top 96%)15445(Top 274%)
30K18.64 mi3.11 mi23279-60913881-23113881-23125068(Top 88%)14560(Top 90%)14560(Top 258%)
20M20.00 mi1.36 mi23463-18413949-6813949-6825051(Top 88%)14484(Top 90%)14484(Top 257%)
21M21.00 mi1.00 mi23488-2513933+1613933+1623619(Top 83%)13736(Top 85%)13736(Top 243%)
35K21.75 mi0.75 mi23498-1013926+713926+723985(Top 84%)13875(Top 86%)13875(Top 246%)
23M23.00 mi1.25 mi23617-11913968-4213968-4224829(Top 87%)14257(Top 89%)14257(Top 253%)
24M24.00 mi1.00 mi23607+1013943+2513943+2523349(Top 82%)13487(Top 84%)13487(Top 239%)
40K24.85 mi0.85 mi23606+113925+1813925+1823130(Top 81%)13302(Top 83%)13302(Top 236%)
25.2M25.20 mi0.35 mi23521+8513877+4813877+4817050(Top 60%)10415(Top 65%)10415(Top 185%)
Finish26.22 mi1.02 mi23222+29913727+15013727+15010618(Top 37%)7326(Top 45%)7326(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18187

Males

11707

M18-39

11707

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17236

Males

11345

M18-39

11345

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18187

Males

11707

M18-39

11707

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23679

Males

14083

M18-39

14083

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

26203

Males

15192

M18-39

15192

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

26868

Males

15445

M18-39

15445

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

25068

Males

14560

M18-39

14560

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

25051

Males

14484

M18-39

14484

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23619

Males

13736

M18-39

13736

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23985

Males

13875

M18-39

13875

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

24829

Males

14257

M18-39

14257

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

23349

Males

13487

M18-39

13487

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23130

Males

13302

M18-39

13302

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17050

Males

10415

M18-39

10415

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10618

Males

7326

M18-39

7326

Passing Analysis

Category:
Athletes Passed
1088
Passed By
7210
Net Change
-6122
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17100
5K → 10K272326-54#17100#17154
10K → 15K100453-353#17154#17507
15K → 20K72176-2169#17507#19676
20K → Half1620-619#19676#20295
Half → 25K12376-2375#20295#22670
25K → 30K42651-609#22670#23279
30K → 20M32216-184#23279#23463
20M → 21M7297-25#23463#23488
21M → 35K4151-10#23488#23498
35K → 23M36155-119#23498#23617
23M → 24M5545+10#23617#23607
24M → 40K4443+1#23607#23606
40K → 25.2M861+85#23606#23521
25.2M → Finish2990+299#23521#23222
TOTALS10887210-6122
📊

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