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BOSTON MARATHON 2025

Mengyuxin Zhang

Bib: 4064•M

ON

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:26
Rank: #2154
Start → 5K
19:26 | 6:15/mi
10K· 6.21 mi
38:27
Rank: #1806 (+348)
5K → 10K
19:01 | 6:07/mi
15K· 9.32 mi
57:31
Rank: #1705 (+101)
10K → 15K
19:04 | 6:08/mi
20K· 12.43 mi
1:16:36
Rank: #1586 (+119)
15K → 20K
19:05 | 6:09/mi
Half· 13.11 mi
1:20:46
Rank: #1582 (+4)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:35:41
Rank: #1510 (+72)
Half → 25K
14:55 | 6:09/mi
30K· 18.64 mi
1:55:00
Rank: #1360 (+150)
25K → 30K
19:19 | 6:13/mi
20M
2:03:26
Rank: #1289 (+71)
30K → 20M
8:26 | 6:12/mi
21M
2:10:00
Rank: #1245 (+44)
20M → 21M
6:34 | 6:34/mi
35K· 21.75 mi
2:14:26
Rank: #1202 (+43)
21M → 35K
4:26 | 5:56/mi
23M
2:21:59
Rank: #1085 (+117)
35K → 23M
7:33 | 6:02/mi
24M
2:27:55
Rank: #1028 (+57)
23M → 24M
5:56 | 5:56/mi
40K· 24.85 mi
2:33:01
Rank: #976 (+52)
24M → 40K
5:06 | 5:58/mi
25.2M
2:35:17
Rank: #961 (+15)
40K → 25.2M
2:16 | 6:34/mi
Finish· 26.22 mi
2:41:17
Rank: #937 (+24)
25.2M → Finish
6:00 | 5:53/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:20:46
Pace6:10 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:20:31
Pace6:09 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1219:266:1519:26
6:15
-
10K
6.21 mi10:40:1338:276:1119:01
6:07
-0:08
15K
9.32 mi10:59:1757:316:1019:04
6:08
+0:01
20K
12.43 mi11:18:221:16:366:1019:05
6:09
+0:01
Half
13.11 mi11:22:321:20:466:104:10
6:06
-0:03
25K
15.53 mi11:37:271:35:416:1014:55
6:09
+0:03
30K
18.64 mi11:56:461:55:006:1019:19
6:13
+0:04
20M
20.00 mi12:05:122:03:266:108:26
6:12
-0:01
21M
21.00 mi12:11:462:10:006:116:34
6:34
+0:22
35K
21.75 mi12:16:122:14:266:114:26
5:56
-0:38
23M
23.00 mi12:23:452:21:596:107:33
6:02
+0:06
24M
24.00 mi12:29:412:27:556:105:56
5:56
-0:06
40K
24.85 mi12:34:472:33:016:095:06
5:58
+0:02
25.2M
25.20 mi12:37:032:35:176:102:16
6:34
+0:36
Finish
26.22 mi12:43:032:41:176:096:00
5:53
-0:41

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

5:53 /mi

Average Pace

6:09 /mi

Slowest Pace

6:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:27

95% of race

Time at Steady Pace

8:50

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:09 /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 mi10:21:1219:266:1519:26
6:15
#2154
10K
6.21 mi10:40:1338:276:1119:01
6:07
#1806
15K
9.32 mi10:59:1757:316:1019:04
6:08
#1705
20K
12.43 mi11:18:221:16:366:1019:05
6:09
#1586
Half
13.11 mi11:22:321:20:466:104:10
6:06
#1582
25K
15.53 mi11:37:271:35:416:1014:55
6:09
#1510
30K
18.64 mi11:56:461:55:006:1019:19
6:13
#1360
20M
20.00 mi12:05:122:03:266:108:26
6:12
#1289
21M
21.00 mi12:11:462:10:006:116:34
6:34
#1245
35K
21.75 mi12:16:122:14:266:114:26
5:56
#1202
23M
23.00 mi12:23:452:21:596:107:33
6:02
#1085
24M
24.00 mi12:29:412:27:556:105:56
5:56
#1028
40K
24.85 mi12:34:472:33:016:095:06
5:58
#976
25.2M
25.20 mi12:37:032:35:176:102:16
6:34
#961
Finish
26.22 mi12:43:032:41:176:096:00
5:53
#937
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2154205520551541(Top 5%)1464(Top 9%)1464(Top 26%)
10K6.21 mi3.10 mi1806+3481717+3381717+3381540(Top 5%)1463(Top 9%)1463(Top 26%)
15K9.32 mi3.11 mi1705+1011621+961621+961541(Top 5%)1464(Top 9%)1464(Top 26%)
20K12.43 mi3.11 mi1586+1191505+1161505+1161323(Top 5%)1252(Top 8%)1252(Top 22%)
Half13.11 mi0.68 mi1582+41502+31502+31522(Top 5%)1445(Top 9%)1445(Top 26%)
25K15.53 mi2.42 mi1510+721431+711431+711279(Top 5%)1210(Top 8%)1210(Top 21%)
30K18.64 mi3.11 mi1360+1501285+1461285+146964(Top 3%)906(Top 6%)906(Top 16%)
20M20.00 mi1.36 mi1289+711216+691216+69749(Top 3%)707(Top 4%)707(Top 13%)
21M21.00 mi1.00 mi1245+441174+421174+42823(Top 3%)778(Top 5%)778(Top 14%)
35K21.75 mi0.75 mi1202+431132+421132+42585(Top 2%)544(Top 3%)544(Top 10%)
23M23.00 mi1.25 mi1085+1171022+1101022+110395(Top 1%)372(Top 2%)372(Top 7%)
24M24.00 mi1.00 mi1028+57967+55967+55464(Top 2%)430(Top 3%)430(Top 8%)
40K24.85 mi0.85 mi976+52919+48919+48352(Top 1%)326(Top 2%)326(Top 6%)
25.2M25.20 mi0.35 mi961+15904+15904+15564(Top 2%)524(Top 3%)524(Top 9%)
Finish26.22 mi1.02 mi937+24879+25879+25651(Top 2%)612(Top 4%)612(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1541

Males

1464

M18-39

1464

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1540

Males

1463

M18-39

1463

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1541

Males

1464

M18-39

1464

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1323

Males

1252

M18-39

1252

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1522

Males

1445

M18-39

1445

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1279

Males

1210

M18-39

1210

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

964

Males

906

M18-39

906

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

749

Males

707

M18-39

707

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

823

Males

778

M18-39

778

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

585

Males

544

M18-39

544

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

395

Males

372

M18-39

372

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

464

Males

430

M18-39

430

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

352

Males

326

M18-39

326

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

564

Males

524

M18-39

524

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

651

Males

612

M18-39

612

Passing Analysis

Category:
Athletes Passed
1291
Passed By
74
Net Change
+1217
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2154
5K → 10K36517+348#2154#1806
10K → 15K11817+101#1806#1705
15K → 20K1256+119#1705#1586
20K → Half95+4#1586#1582
Half → 25K808+72#1582#1510
25K → 30K1522+150#1510#1360
30K → 20M743+71#1360#1289
20M → 21M517+44#1289#1245
21M → 35K430+43#1245#1202
35K → 23M1170+117#1202#1085
23M → 24M570+57#1085#1028
24M → 40K520+52#1028#976
40K → 25.2M161+15#976#961
25.2M → Finish328+24#961#937
TOTALS129174+1217
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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