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BOSTON MARATHON 2024

Zhi Li

Bib: 13278•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 40%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 41%
Division (M50-54)
#0 / 1935
Top 43%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:22/mi
22:52
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
47:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:57/mi
1:11:49
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:36:29
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:41:52
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
2:01:53
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:28:13
↑ 181↓ 1480.2%
20M
8:31/mi
2:39:48
↑ 64↓ 500.2%
21M
8:49/mi
2:48:37
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:54:39
↑ 17↓ 861.7%
23M
8:18/mi
3:05:03
↑ 23↓ 630.6%
24M
8:07/mi
3:13:10
↓ 821.3%
40K· 24.85 mi
8:18/mi
3:20:16
↓ 200.3%
25.2M
9:17/mi
3:23:28
↑ 13↓ 160.2%
Finish· 26.22 mi
8:38/mi
3:32:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:52
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:50:24
Pace8:25 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5222:527:2222:52
7:22
-
10K
6.21 mi11:17:0747:077:3524:15
7:48
+0:26
15K
9.32 mi11:41:491:11:497:4224:42
7:57
+0:09
20K
12.43 mi12:06:291:36:297:4624:40
7:56
-0:01
Half
13.11 mi12:11:521:41:527:465:23
7:53
-0:03
25K
15.53 mi12:31:532:01:537:5120:01
8:15
+0:22
30K
18.64 mi12:58:132:28:137:5726:20
8:29
+0:14
20M
20.00 mi13:09:482:39:487:5911:35
8:31
+0:02
21M
21.00 mi13:18:372:48:378:028:49
8:49
+0:18
35K
21.75 mi13:24:392:54:398:026:02
8:04
-0:45
23M
23.00 mi13:35:033:05:038:0310:24
8:18
+0:14
24M
24.00 mi13:43:103:13:108:038:07
8:07
-0:11
40K
24.85 mi13:50:163:20:168:037:06
8:18
+0:11
25.2M
25.20 mi13:53:283:23:288:043:12
9:17
+0:59
Finish
26.22 mi14:02:163:32:168:068:48
8:38
-0:39

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

7:22 /mi

Average Pace

8:06 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:52

48% of race

Time at Steady Pace

51:40

24% of race

Time at Slower Pace

58:44

28% of race

Average Pace: 8:06 /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 mi10:52:5222:527:2222:52
7:22
#9630
10K
6.21 mi11:17:0747:077:3524:15
7:48
#11151
15K
9.32 mi11:41:491:11:497:4224:42
7:57
#11782
20K
12.43 mi12:06:291:36:297:4624:40
7:56
#11636
Half
13.11 mi12:11:521:41:527:465:23
7:53
#11638
25K
15.53 mi12:31:532:01:537:5120:01
8:15
#11593
30K
18.64 mi12:58:132:28:137:5726:20
8:29
#11294
20M
20.00 mi13:09:482:39:487:5911:35
8:31
#11100
21M
21.00 mi13:18:372:48:378:028:49
8:49
#10792
35K
21.75 mi13:24:392:54:398:026:02
8:04
#10682
23M
23.00 mi13:35:033:05:038:0310:24
8:18
#10398
24M
24.00 mi13:43:103:13:108:038:07
8:07
#10221
40K
24.85 mi13:50:163:20:168:037:06
8:18
#10095
25.2M
25.20 mi13:53:283:23:288:043:12
9:17
#10030
Finish
26.22 mi14:02:163:32:168:068:48
8:38
#10100
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi96307755775513064(Top 51%)9196(Top 63%)9196(Top 475%)
10K6.21 mi3.10 mi11151-15218439-6848439-68412685(Top 50%)9070(Top 62%)9070(Top 469%)
15K9.32 mi3.11 mi11782-6318670-2318670-23113064(Top 51%)9196(Top 63%)9196(Top 475%)
20K12.43 mi3.11 mi11636+1468590+808590+8011392(Top 45%)8362(Top 57%)8362(Top 432%)
Half13.11 mi0.68 mi11638-28590859011899(Top 47%)8579(Top 59%)8579(Top 443%)
25K15.53 mi2.42 mi11593+458530+608530+6011697(Top 46%)8327(Top 57%)8327(Top 430%)
30K18.64 mi3.11 mi11294+2998287+2438287+24310520(Top 41%)7550(Top 52%)7550(Top 390%)
20M20.00 mi1.36 mi11100+1948136+1518136+1519563(Top 37%)6818(Top 47%)6818(Top 352%)
21M21.00 mi1.00 mi10792+3087934+2027934+2027690(Top 30%)5644(Top 39%)5644(Top 292%)
35K21.75 mi0.75 mi10682+1107852+827852+828167(Top 32%)5849(Top 40%)5849(Top 302%)
23M23.00 mi1.25 mi10398+2847643+2097643+2097390(Top 29%)5287(Top 36%)5287(Top 273%)
24M24.00 mi1.00 mi10221+1777516+1277516+1277284(Top 29%)5136(Top 35%)5136(Top 265%)
40K24.85 mi0.85 mi10095+1267407+1097407+1097361(Top 29%)5037(Top 35%)5037(Top 260%)
25.2M25.20 mi0.35 mi10030+657359+487359+487801(Top 31%)5221(Top 36%)5221(Top 270%)
Finish26.22 mi1.02 mi10100-707356+37356+312248(Top 48%)7631(Top 52%)7631(Top 394%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13064

Males

9196

M50-54

9196

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

12685

Males

9070

M50-54

9070

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13064

Males

9196

M50-54

9196

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11392

Males

8362

M50-54

8362

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

11899

Males

8579

M50-54

8579

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

11697

Males

8327

M50-54

8327

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10520

Males

7550

M50-54

7550

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9563

Males

6818

M50-54

6818

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

7690

Males

5644

M50-54

5644

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8167

Males

5849

M50-54

5849

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7390

Males

5287

M50-54

5287

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7284

Males

5136

M50-54

5136

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7361

Males

5037

M50-54

5037

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

7801

Males

5221

M50-54

5221

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12248

Males

7631

M50-54

7631

Passing Analysis

Category:
Athletes Passed
2598*
Passed By
3066
Net Change
-470
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9630
5K → 10K281547-1521#9630#11151
10K → 15K69700-631#11151#11782
15K → 20K304158+146#11782#11636
20K → Half3840-2#11636#11638
Half → 25K234189+45#11638#11593
25K → 30K440141+299#11593#11294
30K → 20M25763+194#11294#11100
20M → 21M32618+308#11100#10792
21M → 35K12313+110#10792#10682
35K → 23M30622+284#10682#10398
23M → 24M18912+177#10398#10221
24M → 40K147*21+126#10221#10095
40K → 25.2M7813+65#10095#10030
25.2M → Finish59129-70#10030#10100
TOTALS2598*3066-470

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

📊

Passing Visuals

Category:
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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