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BOSTON MARATHON 2023

Yu Zhang

Bib: 1121•M

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 18%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:28
Rank: #1307
Start → 5K
19:28 | 6:16/mi
10K· 6.21 mi
38:56
Rank: #1435 (-128)
5K → 10K
19:28 | 6:16/mi
15K· 9.32 mi
58:22
Rank: #1425 (+10)
10K → 15K
19:26 | 6:15/mi
20K· 12.43 mi
1:18:05
Rank: #1439 (-14)
15K → 20K
19:43 | 6:21/mi
Half· 13.11 mi
1:22:18
Rank: #1427 (+12)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:37:39
Rank: #1414 (+13)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:57:48
Rank: #1412 (+2)
25K → 30K
20:09 | 6:29/mi
20M
2:06:30
Rank: #1379 (+33)
30K → 20M
8:42 | 6:24/mi
21M
2:13:22
Rank: #1375 (+4)
20M → 21M
6:52 | 6:52/mi
35K· 21.75 mi
2:17:59
Rank: #1363 (+12)
21M → 35K
4:37 | 6:10/mi
23M
2:25:58
Rank: #1320 (+43)
35K → 23M
7:59 | 6:23/mi
24M
2:32:08
Rank: #1276 (+44)
23M → 24M
6:10 | 6:10/mi
40K· 24.85 mi
2:37:27
Rank: #1241 (+35)
24M → 40K
5:19 | 6:13/mi
25.2M
2:39:44
Rank: #1222 (+19)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:45:55
Rank: #1195 (+27)
25.2M → Finish
6:11 | 6:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:18
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:23:37
Pace6:23 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5019:286:1619:28
6:16
-
10K
6.21 mi10:39:1838:566:1619:28
6:16
0:00
15K
9.32 mi10:58:4458:226:1619:26
6:15
-0:01
20K
12.43 mi11:18:271:18:056:1719:43
6:21
+0:06
Half
13.11 mi11:22:401:22:186:174:13
6:11
-0:10
25K
15.53 mi11:38:011:37:396:1715:21
6:20
+0:09
30K
18.64 mi11:58:101:57:486:1920:09
6:29
+0:09
20M
20.00 mi12:06:522:06:306:198:42
6:24
-0:05
21M
21.00 mi12:13:442:13:226:216:52
6:52
+0:28
35K
21.75 mi12:18:212:17:596:214:37
6:10
-0:42
23M
23.00 mi12:26:202:25:586:217:59
6:23
+0:13
24M
24.00 mi12:32:302:32:086:206:10
6:10
-0:13
40K
24.85 mi12:37:492:37:276:205:19
6:13
+0:03
25.2M
25.20 mi12:40:062:39:446:202:17
6:37
+0:24
Finish
26.22 mi12:46:172:45:556:206:11
6:04
-0:33

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

6:04 /mi

Average Pace

6:20 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:03

96% of race

Time at Steady Pace

6:52

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:20 /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 mi10:19:5019:286:1619:28
6:16
#1307
10K
6.21 mi10:39:1838:566:1619:28
6:16
#1435
15K
9.32 mi10:58:4458:226:1619:26
6:15
#1425
20K
12.43 mi11:18:271:18:056:1719:43
6:21
#1439
Half
13.11 mi11:22:401:22:186:174:13
6:11
#1427
25K
15.53 mi11:38:011:37:396:1715:21
6:20
#1414
30K
18.64 mi11:58:101:57:486:1920:09
6:29
#1412
20M
20.00 mi12:06:522:06:306:198:42
6:24
#1379
21M
21.00 mi12:13:442:13:226:216:52
6:52
#1375
35K
21.75 mi12:18:212:17:596:214:37
6:10
#1363
23M
23.00 mi12:26:202:25:586:217:59
6:23
#1320
24M
24.00 mi12:32:302:32:086:206:10
6:10
#1276
40K
24.85 mi12:37:492:37:276:205:19
6:13
#1241
25.2M
25.20 mi12:40:062:39:446:202:17
6:37
#1222
Finish
26.22 mi12:46:172:45:556:206:11
6:04
#1195
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1307124112411446(Top 5%)1379(Top 9%)1379(Top 26%)
10K6.21 mi3.10 mi1435-1281368-1271368-1271608(Top 6%)1535(Top 10%)1535(Top 29%)
15K9.32 mi3.11 mi1425+101360+81360+81446(Top 5%)1379(Top 9%)1379(Top 26%)
20K12.43 mi3.11 mi1439-141372-121372-121584(Top 6%)1514(Top 10%)1514(Top 29%)
Half13.11 mi0.68 mi1427+121360+121360+121278(Top 5%)1226(Top 8%)1226(Top 23%)
25K15.53 mi2.42 mi1414+131351+91351+91443(Top 5%)1380(Top 9%)1380(Top 26%)
30K18.64 mi3.11 mi1412+21348+31348+31507(Top 6%)1442(Top 10%)1442(Top 27%)
20M20.00 mi1.36 mi1379+331317+311317+311150(Top 4%)1100(Top 7%)1100(Top 21%)
21M21.00 mi1.00 mi1375+41313+41313+41628(Top 6%)1549(Top 10%)1549(Top 29%)
35K21.75 mi0.75 mi1363+121300+131300+131157(Top 4%)1101(Top 7%)1101(Top 21%)
23M23.00 mi1.25 mi1320+431259+411259+411030(Top 4%)977(Top 6%)977(Top 18%)
24M24.00 mi1.00 mi1276+441217+421217+42922(Top 3%)873(Top 6%)873(Top 17%)
40K24.85 mi0.85 mi1241+351184+331184+33696(Top 3%)659(Top 4%)659(Top 12%)
25.2M25.20 mi0.35 mi1222+191165+191165+19719(Top 3%)684(Top 5%)684(Top 13%)
Finish26.22 mi1.02 mi1195+271139+261139+26900(Top 3%)860(Top 6%)860(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1446

Males

1379

M18-39

1379

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1608

Males

1535

M18-39

1535

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1446

Males

1379

M18-39

1379

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1584

Males

1514

M18-39

1514

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1278

Males

1226

M18-39

1226

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1443

Males

1380

M18-39

1380

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1507

Males

1442

M18-39

1442

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1150

Males

1100

M18-39

1100

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1628

Males

1549

M18-39

1549

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1157

Males

1101

M18-39

1101

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1030

Males

977

M18-39

977

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

922

Males

873

M18-39

873

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

696

Males

659

M18-39

659

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

719

Males

684

M18-39

684

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

900

Males

860

M18-39

860

Passing Analysis

Category:
Athletes Passed
503
Passed By
391
Net Change
+112
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1307
5K → 10K37165-128#1307#1435
10K → 15K5040+10#1435#1425
15K → 20K4155-14#1425#1439
20K → Half164+12#1439#1427
Half → 25K3926+13#1427#1414
25K → 30K5250+2#1414#1412
30K → 20M385+33#1412#1379
20M → 21M2319+4#1379#1375
21M → 35K197+12#1375#1363
35K → 23M485+43#1363#1320
23M → 24M484+44#1320#1276
24M → 40K394+35#1276#1241
40K → 25.2M201+19#1241#1222
25.2M → Finish336+27#1222#1195
TOTALS503391+112
📊

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