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BOSTON MARATHON 2024

Jianzhao Li

Bib: 4770•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 13%
Gender (Male)
#0 / 14578
Top 21%
Division (M18-39)
#0 / 4849
Top 43%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:34
Rank: #2098
Start → 5K
19:34 | 6:18/mi
10K· 6.21 mi
39:31
Rank: #2309 (-211)
5K → 10K
19:57 | 6:25/mi
15K· 9.32 mi
59:40
Rank: #2402 (-93)
10K → 15K
20:09 | 6:29/mi
20K· 12.43 mi
1:20:38
Rank: #2616 (-214)
15K → 20K
20:58 | 6:45/mi
Half· 13.11 mi
1:25:09
Rank: #2651 (-35)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:41:47
Rank: #2717 (-66)
Half → 25K
16:38 | 6:52/mi
30K· 18.64 mi
2:04:38
Rank: #2975 (-258)
25K → 30K
22:51 | 7:21/mi
20M
2:14:35
Rank: #3009 (-34)
30K → 20M
9:57 | 7:19/mi
21M
2:22:20
Rank: #2993 (+16)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:27:44
Rank: #3022 (-29)
21M → 35K
5:24 | 7:13/mi
23M
2:36:52
Rank: #2972 (+50)
35K → 23M
9:08 | 7:18/mi
24M
2:44:10
Rank: #2986 (-14)
23M → 24M
7:18 | 7:18/mi
40K· 24.85 mi
2:50:26
Rank: #2957 (+29)
24M → 40K
6:16 | 7:20/mi
25.2M
2:54:12
Rank: #3146 (-189)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
3:03:07
Rank: #3375 (-229)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:09
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:37:58
Pace7:28 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4019:346:1819:34
6:18
-
10K
6.21 mi10:43:3739:316:2219:57
6:25
+0:07
15K
9.32 mi11:03:4659:406:2420:09
6:29
+0:04
20K
12.43 mi11:24:441:20:386:2920:58
6:45
+0:16
Half
13.11 mi11:29:151:25:096:304:31
6:37
-0:08
25K
15.53 mi11:45:531:41:476:3316:38
6:52
+0:15
30K
18.64 mi12:08:442:04:386:4122:51
7:21
+0:29
20M
20.00 mi12:18:412:14:356:449:57
7:19
-0:02
21M
21.00 mi12:26:262:22:206:477:45
7:45
+0:26
35K
21.75 mi12:31:502:27:446:485:24
7:13
-0:32
23M
23.00 mi12:40:582:36:526:499:08
7:18
+0:05
24M
24.00 mi12:48:162:44:106:507:18
7:18
0:00
40K
24.85 mi12:54:322:50:266:516:16
7:20
+0:02
25.2M
25.20 mi12:58:182:54:126:553:46
10:55
+3:35
Finish
26.22 mi13:07:133:03:076:598:55
8:45
-2:10

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

6:18 /mi

Average Pace

6:59 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:11

35% of race

Time at Steady Pace

1:46:15

58% of race

Time at Slower Pace

12:41

7% of race

Average Pace: 6:59 /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 mi10:23:4019:346:1819:34
6:18
#2098
10K
6.21 mi10:43:3739:316:2219:57
6:25
#2309
15K
9.32 mi11:03:4659:406:2420:09
6:29
#2402
20K
12.43 mi11:24:441:20:386:2920:58
6:45
#2616
Half
13.11 mi11:29:151:25:096:304:31
6:37
#2651
25K
15.53 mi11:45:531:41:476:3316:38
6:52
#2717
30K
18.64 mi12:08:442:04:386:4122:51
7:21
#2975
20M
20.00 mi12:18:412:14:356:449:57
7:19
#3009
21M
21.00 mi12:26:262:22:206:477:45
7:45
#2993
35K
21.75 mi12:31:502:27:446:485:24
7:13
#3022
23M
23.00 mi12:40:582:36:526:499:08
7:18
#2972
24M
24.00 mi12:48:162:44:106:507:18
7:18
#2986
40K
24.85 mi12:54:322:50:266:516:16
7:20
#2957
25.2M
25.20 mi12:58:182:54:126:553:46
10:55
#3146
Finish
26.22 mi13:07:133:03:076:598:55
8:45
#3375
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2098203320332646(Top 10%)2537(Top 17%)2537(Top 52%)
10K6.21 mi3.10 mi2309-2112231-1982231-1982534(Top 10%)2431(Top 17%)2431(Top 50%)
15K9.32 mi3.11 mi2402-932315-842315-842646(Top 10%)2537(Top 17%)2537(Top 52%)
20K12.43 mi3.11 mi2616-2142510-1952510-1953505(Top 14%)3309(Top 23%)3309(Top 68%)
Half13.11 mi0.68 mi2651-352540-302540-303297(Top 13%)3131(Top 21%)3131(Top 65%)
25K15.53 mi2.42 mi2717-662591-512591-513562(Top 14%)3325(Top 23%)3325(Top 69%)
30K18.64 mi3.11 mi2975-2582822-2312822-2314429(Top 17%)3937(Top 27%)3937(Top 81%)
20M20.00 mi1.36 mi3009-342851-292851-293628(Top 14%)3275(Top 22%)3275(Top 68%)
21M21.00 mi1.00 mi2993+162830+212830+213291(Top 13%)2937(Top 20%)2937(Top 61%)
35K21.75 mi0.75 mi3022-292847-172847-173825(Top 15%)3325(Top 23%)3325(Top 69%)
23M23.00 mi1.25 mi2972+502796+512796+512892(Top 11%)2572(Top 18%)2572(Top 53%)
24M24.00 mi1.00 mi2986-142801-52801-53358(Top 13%)2875(Top 20%)2875(Top 59%)
40K24.85 mi0.85 mi2957+292764+372764+372903(Top 11%)2509(Top 17%)2509(Top 52%)
25.2M25.20 mi0.35 mi3146-1892927-1632927-16314156(Top 55%)8468(Top 58%)8468(Top 175%)
Finish26.22 mi1.02 mi3375-2293107-1803107-18012869(Top 50%)7928(Top 54%)7928(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2646

Males

2537

M18-39

2537

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2534

Males

2431

M18-39

2431

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2646

Males

2537

M18-39

2537

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3505

Males

3309

M18-39

3309

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3297

Males

3131

M18-39

3131

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3562

Males

3325

M18-39

3325

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4429

Males

3937

M18-39

3937

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3628

Males

3275

M18-39

3275

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3291

Males

2937

M18-39

2937

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3825

Males

3325

M18-39

3325

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

2892

Males

2572

M18-39

2572

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3358

Males

2875

M18-39

2875

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2903

Males

2509

M18-39

2509

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14156

Males

8468

M18-39

8468

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

12869

Males

7928

M18-39

7928

Passing Analysis

Category:
Athletes Passed
721
Passed By
1998
Net Change
-1277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2098
5K → 10K51262-211#2098#2309
10K → 15K51144-93#2309#2402
15K → 20K51265-214#2402#2616
20K → Half1146-35#2616#2651
Half → 25K65131-66#2651#2717
25K → 30K84342-258#2717#2975
30K → 20M66100-34#2975#3009
20M → 21M7862+16#3009#2993
21M → 35K3968-29#2993#3022
35K → 23M9444+50#3022#2972
23M → 24M4256-14#2972#2986
24M → 40K6233+29#2986#2957
40K → 25.2M4193-189#2957#3146
25.2M → Finish23252-229#3146#3375
TOTALS7211998-1277
📊

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