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BOSTON MARATHON 2025

Zhengyu Huang

Bib: 18712•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 43%
Division (M55-59)
#0 / 1648
Top 26%
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
7:46/mi
24:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
47:18
↑ 79↓ 1380.4%
15K· 9.32 mi
7:31/mi
1:10:40
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:34:33
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:39:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:39/mi
1:58:15
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:22:48
↑ 181↓ 1480.2%
20M
7:55/mi
2:33:34
↑ 64↓ 500.2%
21M
8:40/mi
2:42:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:48:17
↑ 17↓ 861.7%
23M
8:02/mi
2:58:21
↑ 23↓ 630.6%
24M
7:54/mi
3:06:15
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:13:12
↓ 200.3%
25.2M
9:05/mi
3:16:20
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:24:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:42
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:44:48
Pace8:00 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5624:077:4624:07
7:46
-
10K
6.21 mi11:38:0747:187:3723:11
7:28
-0:18
15K
9.32 mi12:01:291:10:407:3523:22
7:31
+0:03
20K
12.43 mi12:25:221:34:337:3623:53
7:41
+0:10
Half
13.11 mi12:30:311:39:427:365:09
7:33
-0:08
25K
15.53 mi12:49:041:58:157:3718:33
7:39
+0:06
30K
18.64 mi13:13:372:22:487:4024:33
7:54
+0:15
20M
20.00 mi13:24:232:33:347:4110:46
7:55
+0:01
21M
21.00 mi13:33:032:42:147:448:40
8:40
+0:45
35K
21.75 mi13:39:062:48:177:446:03
8:05
-0:35
23M
23.00 mi13:49:102:58:217:4510:04
8:02
-0:03
24M
24.00 mi13:57:043:06:157:467:54
7:54
-0:08
40K
24.85 mi14:04:013:13:127:466:57
8:08
+0:14
25.2M
25.20 mi14:07:093:16:207:473:08
9:05
+0:57
Finish
26.22 mi14:15:193:24:307:488:10
8:01
-1:04

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

7:28 /mi

Average Pace

7:48 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:08

46% of race

Time at Steady Pace

1:31:37

45% of race

Time at Slower Pace

18:45

9% of race

Average Pace: 7:48 /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 mi11:14:5624:077:4624:07
7:46
#14461
10K
6.21 mi11:38:0747:187:3723:11
7:28
#13139
15K
9.32 mi12:01:291:10:407:3523:22
7:31
#12696
20K
12.43 mi12:25:221:34:337:3623:53
7:41
#12549
Half
13.11 mi12:30:311:39:427:365:09
7:33
#12537
25K
15.53 mi12:49:041:58:157:3718:33
7:39
#12290
30K
18.64 mi13:13:372:22:487:4024:33
7:54
#11907
20M
20.00 mi13:24:232:33:347:4110:46
7:55
#11713
21M
21.00 mi13:33:032:42:147:448:40
8:40
#11681
35K
21.75 mi13:39:062:48:177:446:03
8:05
#11721
23M
23.00 mi13:49:102:58:217:4510:04
8:02
#11592
24M
24.00 mi13:57:043:06:157:467:54
7:54
#11500
40K
24.85 mi14:04:013:13:127:466:57
8:08
#11457
25.2M
25.20 mi14:07:093:16:207:473:08
9:05
#11458
Finish
26.22 mi14:15:193:24:307:488:10
8:01
#11504
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14461102211022111925(Top 42%)9025(Top 56%)9025(Top 548%)
10K6.21 mi3.10 mi13139+13229674+5479674+54711708(Top 41%)9000(Top 56%)9000(Top 546%)
15K9.32 mi3.11 mi12696+4439454+2209454+22011925(Top 42%)9025(Top 56%)9025(Top 548%)
20K12.43 mi3.11 mi12549+1479338+1169338+11612257(Top 43%)9073(Top 56%)9073(Top 551%)
Half13.11 mi0.68 mi12537+129331+79331+712044(Top 42%)9019(Top 56%)9019(Top 547%)
25K15.53 mi2.42 mi12290+2479186+1459186+14511125(Top 39%)8440(Top 52%)8440(Top 512%)
30K18.64 mi3.11 mi11907+3838930+2568930+25610623(Top 37%)7984(Top 50%)7984(Top 484%)
20M20.00 mi1.36 mi11713+1948803+1278803+1279872(Top 35%)7454(Top 46%)7454(Top 452%)
21M21.00 mi1.00 mi11681+328746+578746+5711429(Top 40%)8073(Top 50%)8073(Top 490%)
35K21.75 mi0.75 mi11721-408748-28748-212770(Top 45%)8683(Top 54%)8683(Top 527%)
23M23.00 mi1.25 mi11592+1298633+1158633+11510273(Top 36%)7357(Top 46%)7357(Top 446%)
24M24.00 mi1.00 mi11500+928553+808553+8010494(Top 37%)7407(Top 46%)7407(Top 449%)
40K24.85 mi0.85 mi11457+438494+598494+5911022(Top 39%)7558(Top 47%)7558(Top 459%)
25.2M25.20 mi0.35 mi11458-18482+128482+1212142(Top 43%)8028(Top 50%)8028(Top 487%)
Finish26.22 mi1.02 mi11504-468465+178465+1712930(Top 46%)8484(Top 53%)8484(Top 515%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11925

Males

9025

M55-59

9025

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11708

Males

9000

M55-59

9000

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11925

Males

9025

M55-59

9025

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12257

Males

9073

M55-59

9073

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

12044

Males

9019

M55-59

9019

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

11125

Males

8440

M55-59

8440

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10623

Males

7984

M55-59

7984

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9872

Males

7454

M55-59

7454

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11429

Males

8073

M55-59

8073

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12770

Males

8683

M55-59

8683

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10273

Males

7357

M55-59

7357

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10494

Males

7407

M55-59

7407

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

11022

Males

7558

M55-59

7558

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12142

Males

8028

M55-59

8028

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12930

Males

8484

M55-59

8484

Passing Analysis

Category:
Athletes Passed
3738
Passed By
781
Net Change
+2957
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14461
5K → 10K133614+1322#14461#13139
10K → 15K48946+443#13139#12696
15K → 20K266119+147#12696#12549
20K → Half3422+12#12549#12537
Half → 25K29144+247#12537#12290
25K → 30K43956+383#12290#11907
30K → 20M22228+194#11907#11713
20M → 21M11381+32#11713#11681
21M → 35K4787-40#11681#11721
35K → 23M17546+129#11721#11592
23M → 24M13442+92#11592#11500
24M → 40K9451+43#11500#11457
40K → 25.2M3536-1#11457#11458
25.2M → Finish63109-46#11458#11504
TOTALS3738781+2957
📊

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