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BOSTON MARATHON 2025

Zhiwei Zhao

Bib: 29747 M CN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
8:38/mi
26:49
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:35/mi
53:30
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:27/mi
1:19:45
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:23/mi
1:45:47
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:05/mi
1:51:18
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:21/mi
2:11:32
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:28/mi
2:37:50
↑ 181↓ 1480.2%
138 ft elev
20M
8:40/mi
2:49:36
↑ 64↓ 500.2%
148 ft elev
21M
9:08/mi
2:58:44
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:40/mi
3:05:13
↑ 17↓ 861.7%
156 ft elev
23M
8:27/mi
3:15:48
↑ 23↓ 630.6%
116 ft elev
24M
8:37/mi
3:24:25
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:47/mi
3:31:56
↓ 200.3%
20 ft elev
25.2M
9:28/mi
3:35:12
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:16/mi
3:43:37
↑ 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 Half⚖️ Balanced
Distance13.11 mi
Time1:51:18
Pace8:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:52:19
Pace8:34 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5926:498:3826:49
8:38
-
10K
6.21 mi12:14:4053:308:3726:41
8:35
-0:03
15K
9.32 mi12:40:551:19:458:3326:15
8:27
-0:08
20K
12.43 mi13:06:571:45:478:3126:02
8:23
-0:04
Half
13.11 mi13:12:281:51:188:295:31
8:05
-0:18
25K
15.53 mi13:32:422:11:328:2820:14
8:21
+0:16
30K
18.64 mi13:59:002:37:508:2826:18
8:28
+0:07
20M
20.00 mi14:10:462:49:368:2911:46
8:40
+0:12
21M
21.00 mi14:19:542:58:448:319:08
9:08
+0:28
35K
21.75 mi14:26:233:05:138:316:29
8:40
-0:28
23M
23.00 mi14:36:583:15:488:3110:35
8:27
-0:13
24M
24.00 mi14:45:353:24:258:318:37
8:37
+0:10
40K
24.85 mi14:53:063:31:568:327:31
8:47
+0:10
25.2M
25.20 mi14:56:223:35:128:323:16
9:28
+0:41
Finish
26.22 mi15:04:473:43:378:328:25
8:16
-1:12

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

8:05 /mi

Average Pace

8:32 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:31:13

94% of race

Time at Steady Pace

12:24

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:32 /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 mi11:47:5926:498:3826:49
8:38
#20630
10K
6.21 mi12:14:4053:308:3726:41
8:35
#20439
15K
9.32 mi12:40:551:19:458:3326:15
8:27
#20008
20K
12.43 mi13:06:571:45:478:3126:02
8:23
#19337
Half
13.11 mi13:12:281:51:188:295:31
8:05
#19197
25K
15.53 mi13:32:422:11:328:2820:14
8:21
#18704
30K
18.64 mi13:59:002:37:508:2826:18
8:28
#17890
20M
20.00 mi14:10:462:49:368:2911:46
8:40
#17642
21M
21.00 mi14:19:542:58:448:319:08
9:08
#17436
35K
21.75 mi14:26:233:05:138:316:29
8:40
#17379
23M
23.00 mi14:36:583:15:488:3110:35
8:27
#17098
24M
24.00 mi14:45:353:24:258:318:37
8:37
#17002
40K
24.85 mi14:53:063:31:568:327:31
8:47
#16925
25.2M
25.20 mi14:56:223:35:128:323:16
9:28
#16876
Finish
26.22 mi15:04:473:43:378:328:25
8:16
#16775
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi20630126951269519020(Top 67%)12051(Top 75%)12051(Top 604%)
10K6.21 mi3.10 mi20439+19112641+5412641+5420283(Top 71%)12598(Top 78%)12598(Top 631%)
15K9.32 mi3.11 mi20008+43112480+16112480+16119020(Top 67%)12051(Top 75%)12051(Top 604%)
20K12.43 mi3.11 mi19337+67112178+30212178+30217417(Top 61%)11353(Top 70%)11353(Top 569%)
Half13.11 mi0.68 mi19197+14012116+6212116+6216504(Top 58%)10983(Top 68%)10983(Top 550%)
25K15.53 mi2.42 mi18704+49311900+21611900+21616206(Top 57%)10735(Top 67%)10735(Top 538%)
30K18.64 mi3.11 mi17890+81411499+40111499+40114549(Top 51%)9860(Top 61%)9860(Top 494%)
20M20.00 mi1.36 mi17642+24811361+13811361+13814791(Top 52%)9828(Top 61%)9828(Top 492%)
21M21.00 mi1.00 mi17436+20611252+10911252+10914261(Top 50%)9464(Top 59%)9464(Top 474%)
35K21.75 mi0.75 mi17379+5711205+4711205+4716447(Top 58%)10370(Top 64%)10370(Top 520%)
23M23.00 mi1.25 mi17098+28111055+15011055+15013007(Top 46%)8704(Top 54%)8704(Top 436%)
24M24.00 mi1.00 mi17002+9610999+5610999+5615248(Top 54%)9701(Top 60%)9701(Top 486%)
40K24.85 mi0.85 mi16925+7710934+6510934+6515131(Top 53%)9507(Top 59%)9507(Top 476%)
25.2M25.20 mi0.35 mi16876+4910897+3710897+3714415(Top 51%)9144(Top 57%)9144(Top 458%)
Finish26.22 mi1.02 mi16775+10110837+6010837+6014657(Top 52%)9329(Top 58%)9329(Top 467%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

19020

Males

12051

M50-54

12051

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20283

Males

12598

M50-54

12598

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

19020

Males

12051

M50-54

12051

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

17417

Males

11353

M50-54

11353

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16504

Males

10983

M50-54

10983

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

16206

Males

10735

M50-54

10735

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14549

Males

9860

M50-54

9860

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

14791

Males

9828

M50-54

9828

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14261

Males

9464

M50-54

9464

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16447

Males

10370

M50-54

10370

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

13007

Males

8704

M50-54

8704

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15248

Males

9701

M50-54

9701

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15131

Males

9507

M50-54

9507

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14415

Males

9144

M50-54

9144

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

14657

Males

9329

M50-54

9329

Passing Analysis

Category:
Athletes Passed
4295
Passed By
440
Net Change
+3855
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20630
5K → 10K388197+191#20630#20439
10K → 15K46332+431#20439#20008
15K → 20K68110+671#20008#19337
20K → Half1411+140#19337#19197
Half → 25K4952+493#19197#18704
25K → 30K8184+814#18704#17890
30K → 20M26214+248#17890#17642
20M → 21M22620+206#17642#17436
21M → 35K8831+57#17436#17379
35K → 23M29110+281#17379#17098
23M → 24M13034+96#17098#17002
24M → 40K11538+77#17002#16925
40K → 25.2M6516+49#16925#16876
25.2M → Finish13231+101#16876#16775
TOTALS4295440+3855
📊

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