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BOSTON MARATHON 2024

Jiangjiang Li

Bib: 6524•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 33%
Gender (Male)
#0 / 14578
Top 44%
Masters (Masters Men)
#0 / 9729
Top 34%
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:25
Rank: #6315
Start → 5K
21:25 | 6:54/mi
10K· 6.21 mi
43:14
Rank: #6556 (-241)
5K → 10K
21:49 | 7:01/mi
15K· 9.32 mi
1:05:40
Rank: #6885 (-329)
10K → 15K
22:26 | 7:13/mi
20K· 12.43 mi
1:29:15
Rank: #7316 (-431)
15K → 20K
23:35 | 7:35/mi
Half· 13.11 mi
1:34:28
Rank: #7437 (-121)
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:54:04
Rank: #7917 (-480)
Half → 25K
19:36 | 8:05/mi
30K· 18.64 mi
2:20:08
Rank: #8266 (-349)
25K → 30K
26:04 | 8:23/mi
20M
2:31:50
Rank: #8346 (-80)
30K → 20M
11:42 | 8:37/mi
21M
2:41:06
Rank: #8398 (-52)
20M → 21M
9:16 | 9:16/mi
35K· 21.75 mi
2:47:30
Rank: #8437 (-39)
21M → 35K
6:24 | 8:33/mi
23M
2:58:28
Rank: #8442 (-5)
35K → 23M
10:58 | 8:46/mi
24M
3:07:04
Rank: #8473 (-31)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:14:39
Rank: #8507 (-34)
24M → 40K
7:35 | 8:52/mi
25.2M
3:17:59
Rank: #8494 (+13)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:25:49
Rank: #8375 (+119)
25.2M → Finish
7:50 | 7:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:28
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:51:21
Pace8:30 /mi
📊Positive Split: 17.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:4521:256:5421:25
6:54
-
10K
6.21 mi10:49:3443:146:5721:49
7:01
+0:07
15K
9.32 mi11:12:001:05:407:0322:26
7:13
+0:12
20K
12.43 mi11:35:351:29:157:1123:35
7:35
+0:22
Half
13.11 mi11:40:481:34:287:125:13
7:39
+0:04
25K
15.53 mi12:00:241:54:047:2119:36
8:05
+0:26
30K
18.64 mi12:26:282:20:087:3126:04
8:23
+0:18
20M
20.00 mi12:38:102:31:507:3511:42
8:37
+0:14
21M
21.00 mi12:47:262:41:067:409:16
9:16
+0:39
35K
21.75 mi12:53:502:47:307:426:24
8:33
-0:43
23M
23.00 mi13:04:482:58:287:4610:58
8:46
+0:13
24M
24.00 mi13:13:243:07:047:488:36
8:36
-0:10
40K
24.85 mi13:20:593:14:397:507:35
8:52
+0:16
25.2M
25.20 mi13:24:193:17:597:513:20
9:40
+0:48
Finish
26.22 mi13:32:093:25:497:517:50
7:41
-1:59

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

6:54 /mi

Average Pace

7:51 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:18

50% of race

Time at Steady Pace

1:23:20

40% of race

Time at Slower Pace

20:11

10% of race

Average Pace: 7:51 /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 mi10:27:4521:256:5421:25
6:54
#6315
10K
6.21 mi10:49:3443:146:5721:49
7:01
#6556
15K
9.32 mi11:12:001:05:407:0322:26
7:13
#6885
20K
12.43 mi11:35:351:29:157:1123:35
7:35
#7316
Half
13.11 mi11:40:481:34:287:125:13
7:39
#7437
25K
15.53 mi12:00:241:54:047:2119:36
8:05
#7917
30K
18.64 mi12:26:282:20:087:3126:04
8:23
#8266
20M
20.00 mi12:38:102:31:507:3511:42
8:37
#8346
21M
21.00 mi12:47:262:41:067:409:16
9:16
#8398
35K
21.75 mi12:53:502:47:307:426:24
8:33
#8437
23M
23.00 mi13:04:482:58:287:4610:58
8:46
#8442
24M
24.00 mi13:13:243:07:047:488:36
8:36
#8473
40K
24.85 mi13:20:593:14:397:507:35
8:52
#8507
25.2M
25.20 mi13:24:193:17:597:513:20
9:40
#8494
Finish
26.22 mi13:32:093:25:497:517:50
7:41
#8375
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6315567256727602(Top 30%)6476(Top 44%)6476(Top 322%)
10K6.21 mi3.10 mi6556-2415835-1635835-1636808(Top 27%)5985(Top 41%)5985(Top 298%)
15K9.32 mi3.11 mi6885-3296041-2066041-2067602(Top 30%)6476(Top 44%)6476(Top 322%)
20K12.43 mi3.11 mi7316-4316306-2656306-2658999(Top 35%)7168(Top 49%)7168(Top 357%)
Half13.11 mi0.68 mi7437-1216373-676373-6710123(Top 40%)7723(Top 53%)7723(Top 384%)
25K15.53 mi2.42 mi7917-4806645-2726645-27210695(Top 42%)7851(Top 54%)7851(Top 391%)
30K18.64 mi3.11 mi8266-3496744-996744-9910050(Top 39%)7289(Top 50%)7289(Top 363%)
20M20.00 mi1.36 mi8346-806742+26742+210030(Top 39%)7034(Top 48%)7034(Top 350%)
21M21.00 mi1.00 mi8398-526716+266716+269762(Top 38%)6640(Top 46%)6640(Top 331%)
35K21.75 mi0.75 mi8437-396708+86708+811015(Top 43%)7220(Top 50%)7220(Top 359%)
23M23.00 mi1.25 mi8442-56640+686640+689852(Top 39%)6507(Top 45%)6507(Top 324%)
24M24.00 mi1.00 mi8473-316610+306610+3010014(Top 39%)6542(Top 45%)6542(Top 326%)
40K24.85 mi0.85 mi8507-346587+236587+2310221(Top 40%)6515(Top 45%)6515(Top 324%)
25.2M25.20 mi0.35 mi8494+136553+346553+349393(Top 37%)6024(Top 41%)6024(Top 300%)
Finish26.22 mi1.02 mi8375+1196449+1046449+1046650(Top 26%)4681(Top 32%)4681(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

7602

Males

6476

M40-44

6476

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

6808

Males

5985

M40-44

5985

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

7602

Males

6476

M40-44

6476

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

8999

Males

7168

M40-44

7168

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10123

Males

7723

M40-44

7723

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

10695

Males

7851

M40-44

7851

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10050

Males

7289

M40-44

7289

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10030

Males

7034

M40-44

7034

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

9762

Males

6640

M40-44

6640

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11015

Males

7220

M40-44

7220

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

9852

Males

6507

M40-44

6507

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10014

Males

6542

M40-44

6542

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10221

Males

6515

M40-44

6515

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9393

Males

6024

M40-44

6024

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

6650

Males

4681

M40-44

4681

Passing Analysis

Category:
Athletes Passed
1245
Passed By
3305
Net Change
-2060
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6315
5K → 10K105346-241#6315#6556
10K → 15K66395-329#6556#6885
15K → 20K70501-431#6885#7316
20K → Half9130-121#7316#7437
Half → 25K77557-480#7437#7917
25K → 30K161510-349#7917#8266
30K → 20M93173-80#8266#8346
20M → 21M110162-52#8346#8398
21M → 35K66105-39#8398#8437
35K → 23M131136-5#8437#8442
23M → 24M82113-31#8442#8473
24M → 40K84118-34#8473#8507
40K → 25.2M4835+13#8507#8494
25.2M → Finish14324+119#8494#8375
TOTALS12453305-2060
📊

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