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BOSTON MARATHON 2025

Chuan Zhou

CA

Bib: 22374 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:46/mi
27:15
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:47/mi
54:31
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:45/mi
1:21:41
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:53/mi
1:49:17
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:42/mi
1:55:13
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:56/mi
2:16:52
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:21/mi
2:45:54
↑ 181↓ 1480.2%
138 ft elev
20M
9:31/mi
2:58:50
↑ 64↓ 500.2%
148 ft elev
21M
10:02/mi
3:08:52
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:09/mi
3:15:43
↑ 17↓ 861.7%
156 ft elev
23M
16:43/mi
3:36:39
↑ 23↓ 630.6%
116 ft elev
24M
10:26/mi
3:47:05
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:26/mi
3:56:00
↓ 200.3%
20 ft elev
25.2M
11:30/mi
3:59:58
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:37/mi
4:08:45
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:13
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:13:32
Pace10:11 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3227:158:4627:15
8:46
-
10K
6.21 mi11:49:4854:318:4627:16
8:47
+0:01
15K
9.32 mi12:16:581:21:418:4627:10
8:45
-0:02
20K
12.43 mi12:44:341:49:178:4827:36
8:53
+0:08
Half
13.11 mi12:50:301:55:138:475:56
8:42
-0:11
25K
15.53 mi13:12:092:16:528:4921:39
8:56
+0:14
30K
18.64 mi13:41:112:45:548:5429:02
9:21
+0:25
20M
20.00 mi13:54:072:58:508:5612:56
9:31
+0:10
21M
21.00 mi14:04:093:08:529:0010:02
10:02
+0:31
35K
21.75 mi14:11:003:15:439:006:51
9:09
-0:53
23M
23.00 mi14:31:563:36:399:2520:56
16:43
+7:34
24M
24.00 mi14:42:223:47:059:2810:26
10:26
-6:17
40K
24.85 mi14:51:173:56:009:308:55
10:26
0:00
25.2M
25.20 mi14:55:153:59:589:313:58
11:30
+1:04
Finish
26.22 mi15:04:024:08:459:308:47
8:37
-2:53

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

8:37 /mi

Average Pace

9:30 /mi

Slowest Pace

16:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:24:30

82% of race

Time at Slower Pace

44:15

18% of race

Average Pace: 9:29 /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 mi11:22:3227:158:4627:15
8:46
#21353
10K
6.21 mi11:49:4854:318:4627:16
8:47
#21301
15K
9.32 mi12:16:581:21:418:4627:10
8:45
#21060
20K
12.43 mi12:44:341:49:178:4827:36
8:53
#20893
Half
13.11 mi12:50:301:55:138:475:56
8:42
#20864
25K
15.53 mi13:12:092:16:528:4921:39
8:56
#20681
30K
18.64 mi13:41:112:45:548:5429:02
9:21
#20369
20M
20.00 mi13:54:072:58:508:5612:56
9:31
#20278
21M
21.00 mi14:04:093:08:529:0010:02
10:02
#20166
35K
21.75 mi14:11:003:15:439:006:51
9:09
#20120
23M
23.00 mi14:31:563:36:399:2520:56
16:43
#21683
24M
24.00 mi14:42:223:47:059:2810:26
10:26
#21740
40K
24.85 mi14:51:173:56:009:308:55
10:26
#21730
25.2M
25.20 mi14:55:153:59:589:313:58
11:30
#21729
Finish
26.22 mi15:04:024:08:459:308:47
8:37
#21577
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi21353130221302220714(Top 73%)12820(Top 80%)12820(Top 1018%)
10K6.21 mi3.10 mi21301+5213025-313025-321282(Top 75%)13035(Top 81%)13035(Top 1035%)
15K9.32 mi3.11 mi21060+24112931+9412931+9420714(Top 73%)12820(Top 80%)12820(Top 1018%)
20K12.43 mi3.11 mi20893+16712862+6912862+6920379(Top 72%)12627(Top 78%)12627(Top 1003%)
Half13.11 mi0.68 mi20864+2912849+1312849+1320331(Top 72%)12623(Top 78%)12623(Top 1003%)
25K15.53 mi2.42 mi20681+18312759+9012759+9019572(Top 69%)12223(Top 76%)12223(Top 971%)
30K18.64 mi3.11 mi20369+31212571+18812571+18819320(Top 68%)11977(Top 74%)11977(Top 951%)
20M20.00 mi1.36 mi20278+9112510+6112510+6119252(Top 68%)11806(Top 73%)11806(Top 938%)
21M21.00 mi1.00 mi20166+11212436+7412436+7418430(Top 65%)11362(Top 71%)11362(Top 902%)
35K21.75 mi0.75 mi20120+4612408+2812408+2818985(Top 67%)11499(Top 71%)11499(Top 913%)
23M23.00 mi1.25 mi21683-156313088-68013088-68028249(Top 99%)16002(Top 99%)16002(Top 1271%)
24M24.00 mi1.00 mi21740-5713089-113089-122622(Top 80%)13121(Top 81%)13121(Top 1042%)
40K24.85 mi0.85 mi21730+1013060+2913060+2921710(Top 76%)12608(Top 78%)12608(Top 1001%)
25.2M25.20 mi0.35 mi21729+113052+813052+822025(Top 78%)12800(Top 79%)12800(Top 1017%)
Finish26.22 mi1.02 mi21577+15212978+7412978+7416961(Top 60%)10385(Top 64%)10385(Top 825%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20714

Males

12820

M60-64

12820

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21282

Males

13035

M60-64

13035

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20714

Males

12820

M60-64

12820

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20379

Males

12627

M60-64

12627

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20331

Males

12623

M60-64

12623

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19572

Males

12223

M60-64

12223

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19320

Males

11977

M60-64

11977

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

19252

Males

11806

M60-64

11806

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18430

Males

11362

M60-64

11362

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

18985

Males

11499

M60-64

11499

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

28249

Males

16002

M60-64

16002

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

22622

Males

13121

M60-64

13121

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21710

Males

12608

M60-64

12608

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22025

Males

12800

M60-64

12800

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

16961

Males

10385

M60-64

10385

Passing Analysis

Category:
Athletes Passed
2205
Passed By
2429
Net Change
-224
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21353
5K → 10K309257+52#21353#21301
10K → 15K32685+241#21301#21060
15K → 20K269102+167#21060#20893
20K → Half4617+29#20893#20864
Half → 25K24663+183#20864#20681
25K → 30K37563+312#20681#20369
30K → 20M14352+91#20369#20278
20M → 21M14836+112#20278#20166
21M → 35K7529+46#20166#20120
35K → 23M51568-1563#20120#21683
23M → 24M3390-57#21683#21740
24M → 40K5646+10#21740#21730
40K → 25.2M2019+1#21730#21729
25.2M → Finish1542+152#21729#21577
TOTALS22052429-224
📊

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