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BOSTON MARATHON 2023

Lufeng Zou

Bib: 5606•M

CT

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:02
Rank: #18888
Start → 5K
27:02 | 8:42/mi
10K· 6.21 mi
55:33
Rank: #20389 (-1501)
5K → 10K
28:31 | 9:11/mi
15K· 9.32 mi
1:20:28
Rank: #18650 (+1739)
10K → 15K
24:55 | 8:01/mi
20K· 12.43 mi
1:47:18
Rank: #18404 (+246)
15K → 20K
26:50 | 8:38/mi
Half· 13.11 mi
1:53:15
Rank: #18440 (-36)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:14:39
Rank: #18387 (+53)
Half → 25K
21:24 | 8:50/mi
30K· 18.64 mi
2:42:49
Rank: #18183 (+204)
25K → 30K
28:10 | 9:04/mi
20M
2:55:15
Rank: #18108 (+75)
30K → 20M
12:26 | 9:09/mi
21M
3:04:56
Rank: #17999 (+109)
20M → 21M
9:41 | 9:41/mi
35K· 21.75 mi
3:11:24
Rank: #17946 (+53)
21M → 35K
6:28 | 8:39/mi
23M
3:22:29
Rank: #17791 (+155)
35K → 23M
11:05 | 8:51/mi
24M
3:30:59
Rank: #17654 (+137)
23M → 24M
8:30 | 8:30/mi
40K· 24.85 mi
3:38:26
Rank: #17545 (+109)
24M → 40K
7:27 | 8:43/mi
25.2M
3:41:35
Rank: #17462 (+83)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:50:11
Rank: #17379 (+83)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:15
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time1:56:56
Pace8:55 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:5627:028:4227:02
8:42
-
10K
6.21 mi11:52:2755:338:5628:31
9:11
+0:29
15K
9.32 mi12:17:221:20:288:3824:55
8:01
-1:10
20K
12.43 mi12:44:121:47:188:3826:50
8:38
+0:37
Half
13.11 mi12:50:091:53:158:385:57
8:43
+0:05
25K
15.53 mi13:11:332:14:398:4021:24
8:50
+0:07
30K
18.64 mi13:39:432:42:498:4428:10
9:04
+0:14
20M
20.00 mi13:52:092:55:158:4612:26
9:09
+0:05
21M
21.00 mi14:01:503:04:568:489:41
9:41
+0:32
35K
21.75 mi14:08:183:11:248:486:28
8:39
-1:02
23M
23.00 mi14:19:233:22:298:4811:05
8:51
+0:12
24M
24.00 mi14:27:533:30:598:478:30
8:30
-0:21
40K
24.85 mi14:35:203:38:268:477:27
8:43
+0:13
25.2M
25.20 mi14:38:293:41:358:483:09
9:08
+0:25
Finish
26.22 mi14:47:053:50:118:478:36
8:26
-0:42

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

8:01 /mi

Average Pace

8:47 /mi

Slowest Pace

9:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:01

18% of race

Time at Steady Pace

1:46:13

46% of race

Time at Slower Pace

1:21:57

36% of race

Average Pace: 8:47 /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 mi11:23:5627:028:4227:02
8:42
#18888
10K
6.21 mi11:52:2755:338:5628:31
9:11
#20389
15K
9.32 mi12:17:221:20:288:3824:55
8:01
#18650
20K
12.43 mi12:44:121:47:188:3826:50
8:38
#18404
Half
13.11 mi12:50:091:53:158:385:57
8:43
#18440
25K
15.53 mi13:11:332:14:398:4021:24
8:50
#18387
30K
18.64 mi13:39:432:42:498:4428:10
9:04
#18183
20M
20.00 mi13:52:092:55:158:4612:26
9:09
#18108
21M
21.00 mi14:01:503:04:568:489:41
9:41
#17999
35K
21.75 mi14:08:183:11:248:486:28
8:39
#17946
23M
23.00 mi14:19:233:22:298:4811:05
8:51
#17791
24M
24.00 mi14:27:533:30:598:478:30
8:30
#17654
40K
24.85 mi14:35:203:38:268:477:27
8:43
#17545
25.2M
25.20 mi14:38:293:41:358:483:09
9:08
#17462
Finish
26.22 mi14:47:053:50:118:478:36
8:26
#17379
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi18888117321173214535(Top 55%)10116(Top 67%)10116(Top 191%)
10K6.21 mi3.10 mi20389-150112394-66212394-66221548(Top 81%)12953(Top 85%)12953(Top 245%)
15K9.32 mi3.11 mi18650+173911716+67811716+67814535(Top 55%)10116(Top 67%)10116(Top 191%)
20K12.43 mi3.11 mi18404+24611630+8611630+8617710(Top 67%)11341(Top 75%)11341(Top 215%)
Half13.11 mi0.68 mi18440-3611651-2111651-2119010(Top 71%)11886(Top 78%)11886(Top 225%)
25K15.53 mi2.42 mi18387+5311609+4211609+4218083(Top 68%)11464(Top 76%)11464(Top 217%)
30K18.64 mi3.11 mi18183+20411483+12611483+12617506(Top 66%)11123(Top 73%)11123(Top 210%)
20M20.00 mi1.36 mi18108+7511441+4211441+4217296(Top 65%)10941(Top 72%)10941(Top 207%)
21M21.00 mi1.00 mi17999+10911385+5611385+5616758(Top 63%)10692(Top 70%)10692(Top 202%)
35K21.75 mi0.75 mi17946+5311358+2711358+2716077(Top 60%)10327(Top 68%)10327(Top 195%)
23M23.00 mi1.25 mi17791+15511274+8411274+8415276(Top 57%)9933(Top 65%)9933(Top 188%)
24M24.00 mi1.00 mi17654+13711207+6711207+6714466(Top 54%)9519(Top 63%)9519(Top 180%)
40K24.85 mi0.85 mi17545+10911155+5211155+5214572(Top 55%)9497(Top 63%)9497(Top 180%)
25.2M25.20 mi0.35 mi17462+8311110+4511110+4513263(Top 50%)8904(Top 59%)8904(Top 168%)
Finish26.22 mi1.02 mi17379+8311064+4611064+4614988(Top 56%)9730(Top 64%)9730(Top 184%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14535

Males

10116

M18-39

10116

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21548

Males

12953

M18-39

12953

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14535

Males

10116

M18-39

10116

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

17710

Males

11341

M18-39

11341

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

19010

Males

11886

M18-39

11886

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

18083

Males

11464

M18-39

11464

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17506

Males

11123

M18-39

11123

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

17296

Males

10941

M18-39

10941

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16758

Males

10692

M18-39

10692

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

16077

Males

10327

M18-39

10327

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15276

Males

9933

M18-39

9933

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

14466

Males

9519

M18-39

9519

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14572

Males

9497

M18-39

9497

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13263

Males

8904

M18-39

8904

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14988

Males

9730

M18-39

9730

Passing Analysis

Category:
Athletes Passed
3509
Passed By
2000
Net Change
+1509
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18888
5K → 10K301531-1501#18888#20389
10K → 15K17401+1739#20389#18650
15K → 20K30054+246#18650#18404
20K → Half1955-36#18404#18440
Half → 25K15299+53#18440#18387
25K → 30K29187+204#18387#18183
30K → 20M12550+75#18183#18108
20M → 21M14738+109#18108#17999
21M → 35K6714+53#17999#17946
35K → 23M17823+155#17946#17791
23M → 24M1458+137#17791#17654
24M → 40K12314+109#17654#17545
40K → 25.2M874+83#17545#17462
25.2M → Finish10522+83#17462#17379
TOTALS35092000+1509
📊

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