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BOSTON MARATHON 2024

Lei Chen

Bib: 6496•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 18%
Gender (Male)
#0 / 14578
Top 28%
Masters (Masters Men)
#0 / 9729
Top 17%
Division (M50-54)
#0 / 1935
Top 12%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:16
Rank: #3467
Start → 5K
20:16 | 6:31/mi
10K· 6.21 mi
40:46
Rank: #3503 (-36)
5K → 10K
20:30 | 6:36/mi
15K· 9.32 mi
1:01:31
Rank: #3571 (-68)
10K → 15K
20:45 | 6:41/mi
20K· 12.43 mi
1:23:12
Rank: #3918 (-347)
15K → 20K
21:41 | 6:59/mi
Half· 13.11 mi
1:27:44
Rank: #3879 (+39)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:29
Rank: #3837 (+42)
Half → 25K
16:45 | 6:55/mi
30K· 18.64 mi
2:07:32
Rank: #4015 (-178)
25K → 30K
23:03 | 7:25/mi
20M
2:17:55
Rank: #4069 (-54)
30K → 20M
10:23 | 7:38/mi
21M
2:26:31
Rank: #4178 (-109)
20M → 21M
8:36 | 8:36/mi
35K· 21.75 mi
2:32:33
Rank: #4288 (-110)
21M → 35K
6:02 | 8:04/mi
23M
2:43:01
Rank: #4399 (-111)
35K → 23M
10:28 | 8:22/mi
24M
2:51:10
Rank: #4443 (-44)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
2:58:30
Rank: #4515 (-72)
24M → 40K
7:20 | 8:35/mi
25.2M
3:01:50
Rank: #4562 (-47)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:10:12
Rank: #4667 (-105)
25.2M → Finish
8:22 | 8:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:44
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:42:28
Pace7:49 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:0320:166:3120:16
6:31
-
10K
6.21 mi10:47:3340:466:3420:30
6:36
+0:05
15K
9.32 mi11:08:181:01:316:3620:45
6:41
+0:05
20K
12.43 mi11:29:591:23:126:4221:41
6:59
+0:18
Half
13.11 mi11:34:311:27:446:424:32
6:39
-0:20
25K
15.53 mi11:51:161:44:296:4416:45
6:55
+0:16
30K
18.64 mi12:14:192:07:326:5023:03
7:25
+0:30
20M
20.00 mi12:24:422:17:556:5410:23
7:38
+0:13
21M
21.00 mi12:33:182:26:316:598:36
8:36
+0:58
35K
21.75 mi12:39:202:32:337:016:02
8:04
-0:32
23M
23.00 mi12:49:482:43:017:0510:28
8:22
+0:18
24M
24.00 mi12:57:572:51:107:088:09
8:09
-0:13
40K
24.85 mi13:05:172:58:307:117:20
8:35
+0:26
25.2M
25.20 mi13:08:373:01:507:133:20
9:40
+1:05
Finish
26.22 mi13:16:593:10:127:168:22
8:13
-1:27

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

6:31 /mi

Average Pace

7:16 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:29

55% of race

Time at Steady Pace

39:28

21% of race

Time at Slower Pace

46:15

24% of race

Average Pace: 7:15 /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 mi10:27:0320:166:3120:16
6:31
#3467
10K
6.21 mi10:47:3340:466:3420:30
6:36
#3503
15K
9.32 mi11:08:181:01:316:3620:45
6:41
#3571
20K
12.43 mi11:29:591:23:126:4221:41
6:59
#3918
Half
13.11 mi11:34:311:27:446:424:32
6:39
#3879
25K
15.53 mi11:51:161:44:296:4416:45
6:55
#3837
30K
18.64 mi12:14:192:07:326:5023:03
7:25
#4015
20M
20.00 mi12:24:422:17:556:5410:23
7:38
#4069
21M
21.00 mi12:33:182:26:316:598:36
8:36
#4178
35K
21.75 mi12:39:202:32:337:016:02
8:04
#4288
23M
23.00 mi12:49:482:43:017:0510:28
8:22
#4399
24M
24.00 mi12:57:572:51:107:088:09
8:09
#4443
40K
24.85 mi13:05:172:58:307:117:20
8:35
#4515
25.2M
25.20 mi13:08:373:01:507:133:20
9:40
#4562
Finish
26.22 mi13:16:593:10:127:168:22
8:13
#4667
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3467330633063771(Top 15%)3553(Top 24%)3553(Top 184%)
10K6.21 mi3.10 mi3503-363326-203326-203602(Top 14%)3412(Top 23%)3412(Top 176%)
15K9.32 mi3.11 mi3571-683392-663392-663771(Top 15%)3553(Top 24%)3553(Top 184%)
20K12.43 mi3.11 mi3918-3473694-3023694-3025113(Top 20%)4664(Top 32%)4664(Top 241%)
Half13.11 mi0.68 mi3879+393663+313663+313455(Top 14%)3273(Top 22%)3273(Top 169%)
25K15.53 mi2.42 mi3837+423612+513612+513860(Top 15%)3582(Top 25%)3582(Top 185%)
30K18.64 mi3.11 mi4015-1783755-1433755-1434716(Top 18%)4150(Top 28%)4150(Top 214%)
20M20.00 mi1.36 mi4069-543775-203775-204917(Top 19%)4193(Top 29%)4193(Top 217%)
21M21.00 mi1.00 mi4178-1093859-843859-846668(Top 26%)5079(Top 35%)5079(Top 262%)
35K21.75 mi0.75 mi4288-1103933-743933-748126(Top 32%)5808(Top 40%)5808(Top 300%)
23M23.00 mi1.25 mi4399-1114006-734006-737657(Top 30%)5410(Top 37%)5410(Top 280%)
24M24.00 mi1.00 mi4443-444017-114017-117429(Top 29%)5192(Top 36%)5192(Top 268%)
40K24.85 mi0.85 mi4515-724038-214038-218726(Top 34%)5757(Top 39%)5757(Top 298%)
25.2M25.20 mi0.35 mi4562-474065-274065-279354(Top 37%)5985(Top 41%)5985(Top 309%)
Finish26.22 mi1.02 mi4667-1054127-624127-629798(Top 38%)6344(Top 44%)6344(Top 328%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

3771

Males

3553

M50-54

3553

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3602

Males

3412

M50-54

3412

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

3771

Males

3553

M50-54

3553

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5113

Males

4664

M50-54

4664

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3455

Males

3273

M50-54

3273

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

3860

Males

3582

M50-54

3582

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4716

Males

4150

M50-54

4150

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

4917

Males

4193

M50-54

4193

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

6668

Males

5079

M50-54

5079

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8126

Males

5808

M50-54

5808

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

7657

Males

5410

M50-54

5410

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

7429

Males

5192

M50-54

5192

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8726

Males

5757

M50-54

5757

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9354

Males

5985

M50-54

5985

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

9798

Males

6344

M50-54

6344

Passing Analysis

Category:
Athletes Passed
985
Passed By
2185
Net Change
-1200
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3467
5K → 10K118154-36#3467#3503
10K → 15K81149-68#3503#3571
15K → 20K62409-347#3571#3918
20K → Half4910+39#3918#3879
Half → 25K13997+42#3879#3837
25K → 30K144322-178#3837#4015
30K → 20M97151-54#4015#4069
20M → 21M58167-109#4069#4178
21M → 35K28138-110#4178#4288
35K → 23M61172-111#4288#4399
23M → 24M5498-44#4399#4443
24M → 40K39111-72#4443#4515
40K → 25.2M2269-47#4515#4562
25.2M → Finish33138-105#4562#4667
TOTALS9852185-1200
📊

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