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BOSTON MARATHON 2025

Hao Zhuang

Bib: 10708•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 31%
Masters (Masters Men)
#0 / 10463
Top 17%
Division (M50-54)
#0 / 1996
Top 11%
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
6:56/mi
21:33
↑ 97↓ 3451.5%
10K· 6.21 mi
6:50/mi
42:48
↑ 79↓ 1380.4%
15K· 9.32 mi
6:52/mi
1:04:08
↑ 67↓ 78
20K· 12.43 mi
6:56/mi
1:25:42
↑ 106↓ 860.1%
Half· 13.11 mi
6:49/mi
1:30:21
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:47:15
↑ 66↓ 880.2%
30K· 18.64 mi
7:09/mi
2:09:29
↑ 181↓ 1480.2%
20M
7:03/mi
2:19:04
↑ 64↓ 500.2%
21M
7:34/mi
2:26:38
↑ 106↓ 241.6%
35K· 21.75 mi
7:08/mi
2:31:58
↑ 17↓ 861.7%
23M
7:13/mi
2:41:00
↑ 23↓ 630.6%
24M
7:00/mi
2:48:00
↓ 821.3%
40K· 24.85 mi
7:07/mi
2:54:05
↓ 200.3%
25.2M
7:50/mi
2:56:47
↑ 13↓ 160.2%
Finish· 26.22 mi
6:54/mi
3:03:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:21
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:33:28
Pace7:08 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1821:336:5621:33
6:56
-
10K
6.21 mi11:09:3342:486:5321:15
6:50
-0:06
15K
9.32 mi11:30:531:04:086:5321:20
6:52
+0:02
20K
12.43 mi11:52:271:25:426:5421:34
6:56
+0:04
Half
13.11 mi11:57:061:30:216:544:39
6:49
-0:07
25K
15.53 mi12:14:001:47:156:5416:54
6:58
+0:09
30K
18.64 mi12:36:142:09:296:5722:14
7:09
+0:11
20M
20.00 mi12:45:492:19:046:579:35
7:03
-0:06
21M
21.00 mi12:53:232:26:386:597:34
7:34
+0:31
35K
21.75 mi12:58:432:31:586:595:20
7:08
-0:26
23M
23.00 mi13:07:452:41:007:009:02
7:13
+0:05
24M
24.00 mi13:14:452:48:007:007:00
7:00
-0:13
40K
24.85 mi13:20:502:54:057:006:05
7:07
+0:07
25.2M
25.20 mi13:23:322:56:477:012:42
7:50
+0:43
Finish
26.22 mi13:30:343:03:497:017:02
6:54
-0:56

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

6:49 /mi

Average Pace

7:01 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:33

94% of race

Time at Steady Pace

10:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:01 /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 mi10:48:1821:336:5621:33
6:56
#7326
10K
6.21 mi11:09:3342:486:5321:15
6:50
#7066
15K
9.32 mi11:30:531:04:086:5321:20
6:52
#6921
20K
12.43 mi11:52:271:25:426:5421:34
6:56
#6785
Half
13.11 mi11:57:061:30:216:544:39
6:49
#6765
25K
15.53 mi12:14:001:47:156:5416:54
6:58
#6600
30K
18.64 mi12:36:142:09:296:5722:14
7:09
#6299
20M
20.00 mi12:45:492:19:046:579:35
7:03
#6083
21M
21.00 mi12:53:232:26:386:597:34
7:34
#5976
35K
21.75 mi12:58:432:31:586:595:20
7:08
#5950
23M
23.00 mi13:07:452:41:007:009:02
7:13
#5809
24M
24.00 mi13:14:452:48:007:007:00
7:00
#5695
40K
24.85 mi13:20:502:54:057:006:05
7:07
#5588
25.2M
25.20 mi13:23:322:56:477:012:42
7:50
#5547
Finish
26.22 mi13:30:343:03:497:017:02
6:54
#5477
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi7326653665366713(Top 24%)6034(Top 37%)6034(Top 302%)
10K6.21 mi3.10 mi7066+2606343+1936343+1936783(Top 24%)6112(Top 38%)6112(Top 306%)
15K9.32 mi3.11 mi6921+1456218+1256218+1256713(Top 24%)6034(Top 37%)6034(Top 302%)
20K12.43 mi3.11 mi6785+1366118+1006118+1006515(Top 23%)5837(Top 36%)5837(Top 292%)
Half13.11 mi0.68 mi6765+206098+206098+206285(Top 22%)5670(Top 35%)5670(Top 284%)
25K15.53 mi2.42 mi6600+1655949+1495949+1496115(Top 22%)5487(Top 34%)5487(Top 275%)
30K18.64 mi3.11 mi6299+3015671+2785671+2785658(Top 20%)5061(Top 31%)5061(Top 254%)
20M20.00 mi1.36 mi6083+2165487+1845487+1844433(Top 16%)4039(Top 25%)4039(Top 202%)
21M21.00 mi1.00 mi5976+1075388+995388+994949(Top 17%)4337(Top 27%)4337(Top 217%)
35K21.75 mi0.75 mi5950+265359+295359+296147(Top 22%)5169(Top 32%)5169(Top 259%)
23M23.00 mi1.25 mi5809+1415232+1275232+1274976(Top 18%)4302(Top 27%)4302(Top 216%)
24M24.00 mi1.00 mi5695+1145127+1055127+1054643(Top 16%)4014(Top 25%)4014(Top 201%)
40K24.85 mi0.85 mi5588+1075035+925035+924580(Top 16%)3912(Top 24%)3912(Top 196%)
25.2M25.20 mi0.35 mi5547+414998+374998+375040(Top 18%)4157(Top 26%)4157(Top 208%)
Finish26.22 mi1.02 mi5477+704929+694929+695105(Top 18%)4193(Top 26%)4193(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6713

Males

6034

M50-54

6034

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6783

Males

6112

M50-54

6112

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6713

Males

6034

M50-54

6034

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6515

Males

5837

M50-54

5837

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6285

Males

5670

M50-54

5670

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6115

Males

5487

M50-54

5487

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5658

Males

5061

M50-54

5061

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4433

Males

4039

M50-54

4039

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4949

Males

4337

M50-54

4337

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

6147

Males

5169

M50-54

5169

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4976

Males

4302

M50-54

4302

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4643

Males

4014

M50-54

4014

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4580

Males

3912

M50-54

3912

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5040

Males

4157

M50-54

4157

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

5105

Males

4193

M50-54

4193

Passing Analysis

Category:
Athletes Passed
2285
Passed By
436
Net Change
+1849
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7326
5K → 10K35696+260#7326#7066
10K → 15K21166+145#7066#6921
15K → 20K19660+136#6921#6785
20K → Half4121+20#6785#6765
Half → 25K20641+165#6765#6600
25K → 30K34342+301#6600#6299
30K → 20M2182+216#6299#6083
20M → 21M12417+107#6083#5976
21M → 35K6034+26#5976#5950
35K → 23M16120+141#5950#5809
23M → 24M1195+114#5809#5695
24M → 40K1158+107#5695#5588
40K → 25.2M476+41#5588#5547
25.2M → Finish8818+70#5547#5477
TOTALS2285436+1849
📊

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