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BOSTON MARATHON 2024

Ning Li

Bib: 25798•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 42%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 43%
Division (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:33
Rank: #13888
Start → 5K
24:33 | 7:54/mi
10K· 6.21 mi
47:40
Rank: #11837 (+2051)
5K → 10K
23:07 | 7:26/mi
15K· 9.32 mi
1:10:59
Rank: #11081 (+756)
10K → 15K
23:19 | 7:30/mi
20K· 12.43 mi
1:35:06
Rank: #10813 (+268)
15K → 20K
24:07 | 7:46/mi
Half· 13.11 mi
1:40:18
Rank: #10755 (+58)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:59:55
Rank: #10680 (+75)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:26:11
Rank: #10561 (+119)
25K → 30K
26:16 | 8:27/mi
20M
2:37:40
Rank: #10383 (+178)
30K → 20M
11:29 | 8:27/mi
21M
2:47:10
Rank: #10368 (+15)
20M → 21M
9:30 | 9:30/mi
35K· 21.75 mi
2:53:23
Rank: #10310 (+58)
21M → 35K
6:13 | 8:19/mi
23M
3:04:55
Rank: #10360 (-50)
35K → 23M
11:32 | 9:13/mi
24M
3:13:14
Rank: #10245 (+115)
23M → 24M
8:19 | 8:19/mi
40K· 24.85 mi
3:20:49
Rank: #10226 (+19)
24M → 40K
7:35 | 8:52/mi
25.2M
3:24:37
Rank: #10322 (-96)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:34:28
Rank: #10642 (-320)
25.2M → Finish
9:51 | 9:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:18
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:54:10
Pace8:43 /mi
📊Positive Split: 13.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:1524:337:5424:33
7:54
-
10K
6.21 mi12:03:2247:407:4023:07
7:26
-0:28
15K
9.32 mi12:26:411:10:597:3723:19
7:30
+0:04
20K
12.43 mi12:50:481:35:067:3924:07
7:46
+0:16
Half
13.11 mi12:56:001:40:187:395:12
7:37
-0:09
25K
15.53 mi13:15:371:59:557:4319:37
8:05
+0:28
30K
18.64 mi13:41:532:26:117:5126:16
8:27
+0:22
20M
20.00 mi13:53:222:37:407:5311:29
8:27
0:00
21M
21.00 mi14:02:522:47:107:589:30
9:30
+1:03
35K
21.75 mi14:09:052:53:237:586:13
8:19
-1:11
23M
23.00 mi14:20:373:04:558:0211:32
9:13
+0:54
24M
24.00 mi14:28:563:13:148:038:19
8:19
-0:54
40K
24.85 mi14:36:313:20:498:057:35
8:52
+0:33
25.2M
25.20 mi14:40:193:24:378:073:48
11:01
+2:09
Finish
26.22 mi14:50:103:34:288:119:51
9:40
-1:21

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

7:26 /mi

Average Pace

8:11 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:45

35% of race

Time at Steady Pace

1:36:27

45% of race

Time at Slower Pace

42:16

20% of race

Average Pace: 8:11 /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 mi11:40:1524:337:5424:33
7:54
#13888
10K
6.21 mi12:03:2247:407:4023:07
7:26
#11837
15K
9.32 mi12:26:411:10:597:3723:19
7:30
#11081
20K
12.43 mi12:50:481:35:067:3924:07
7:46
#10813
Half
13.11 mi12:56:001:40:187:395:12
7:37
#10755
25K
15.53 mi13:15:371:59:557:4319:37
8:05
#10680
30K
18.64 mi13:41:532:26:117:5126:16
8:27
#10561
20M
20.00 mi13:53:222:37:407:5311:29
8:27
#10383
21M
21.00 mi14:02:522:47:107:589:30
9:30
#10368
35K
21.75 mi14:09:052:53:237:586:13
8:19
#10310
23M
23.00 mi14:20:373:04:558:0211:32
9:13
#10360
24M
24.00 mi14:28:563:13:148:038:19
8:19
#10245
40K
24.85 mi14:36:313:20:498:057:35
8:52
#10226
25.2M
25.20 mi14:40:193:24:378:073:48
11:01
#10322
Finish
26.22 mi14:50:103:34:288:119:51
9:40
#10642
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi13888960896089711(Top 38%)7662(Top 53%)7662(Top 345%)
10K6.21 mi3.10 mi11837+20518728+8808728+8809741(Top 38%)7735(Top 53%)7735(Top 349%)
15K9.32 mi3.11 mi11081+7568374+3548374+3549711(Top 38%)7662(Top 53%)7662(Top 345%)
20K12.43 mi3.11 mi10813+2688219+1558219+15510142(Top 40%)7727(Top 53%)7727(Top 348%)
Half13.11 mi0.68 mi10755+588189+308189+309975(Top 39%)7672(Top 53%)7672(Top 346%)
25K15.53 mi2.42 mi10680+758088+1018088+10110751(Top 42%)7885(Top 54%)7885(Top 356%)
30K18.64 mi3.11 mi10561+1197939+1497939+14910414(Top 41%)7495(Top 51%)7495(Top 338%)
20M20.00 mi1.36 mi10383+1787794+1457794+1459171(Top 36%)6615(Top 45%)6615(Top 298%)
21M21.00 mi1.00 mi10368+157727+677727+6710830(Top 42%)7150(Top 49%)7150(Top 322%)
35K21.75 mi0.75 mi10310+587664+637664+639617(Top 38%)6575(Top 45%)6575(Top 296%)
23M23.00 mi1.25 mi10360-507627+377627+3712173(Top 48%)7648(Top 52%)7648(Top 345%)
24M24.00 mi1.00 mi10245+1157523+1047523+1048389(Top 33%)5712(Top 39%)5712(Top 258%)
40K24.85 mi0.85 mi10226+197470+537470+5310230(Top 40%)6524(Top 45%)6524(Top 294%)
25.2M25.20 mi0.35 mi10322-967502-327502-3214489(Top 57%)8657(Top 59%)8657(Top 390%)
Finish26.22 mi1.02 mi10642-3207602-1007602-10017183(Top 67%)10037(Top 69%)10037(Top 453%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

9711

Males

7662

M45-49

7662

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

9741

Males

7735

M45-49

7735

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

9711

Males

7662

M45-49

7662

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10142

Males

7727

M45-49

7727

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

9975

Males

7672

M45-49

7672

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

10751

Males

7885

M45-49

7885

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10414

Males

7495

M45-49

7495

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9171

Males

6615

M45-49

6615

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

10830

Males

7150

M45-49

7150

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

9617

Males

6575

M45-49

6575

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

12173

Males

7648

M45-49

7648

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8389

Males

5712

M45-49

5712

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10230

Males

6524

M45-49

6524

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

14489

Males

8657

M45-49

8657

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17183

Males

10037

M45-49

10037

Passing Analysis

Category:
Athletes Passed
4768*
Passed By
1522
Net Change
+3246
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13888
5K → 10K20554+2051#13888#11837
10K → 15K76610+756#11837#11081
15K → 20K36799+268#11081#10813
20K → Half7416+58#10813#10755
Half → 25K264189+75#10755#10680
25K → 30K348229+119#10680#10561
30K → 20M22951+178#10561#10383
20M → 21M143128+15#10383#10368
21M → 35K10446+58#10368#10310
35K → 23M121171-50#10310#10360
23M → 24M15237+115#10360#10245
24M → 40K91*72+19#10245#10226
40K → 25.2M21117-96#10226#10322
25.2M → Finish33353-320#10322#10642
TOTALS4768*1522+3246

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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