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BOSTON MARATHON 2024

Xiaobai Li

Bib: 14579•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M65-69)
#0 / 617
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
8:06/mi
25:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
49:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:07/mi
1:15:05
↑ 67↓ 78
20K· 12.43 mi
8:22/mi
1:41:06
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:47:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:33/mi
2:07:45
↑ 66↓ 880.2%
30K· 18.64 mi
9:29/mi
2:37:13
↑ 181↓ 1480.2%
20M
9:44/mi
2:50:26
↑ 64↓ 500.2%
21M
13:52/mi
3:04:18
↑ 106↓ 241.6%
35K· 21.75 mi
15:29/mi
3:15:53
↑ 17↓ 861.7%
23M
15:42/mi
3:35:33
↑ 23↓ 630.6%
24M
12:57/mi
3:48:30
↓ 821.3%
40K· 24.85 mi
13:24/mi
3:59:57
↓ 200.3%
25.2M
17:53/mi
4:06:07
↑ 13↓ 160.2%
Finish· 26.22 mi
16:08/mi
4:22:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:01
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time2:35:32
Pace11:52 /mi
📊Positive Split: 45.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:4325:108:0625:10
8:06
-
10K
6.21 mi11:22:2649:538:0224:43
7:57
-0:09
15K
9.32 mi11:47:381:15:058:0325:12
8:07
+0:10
20K
12.43 mi12:13:391:41:068:0826:01
8:22
+0:15
Half
13.11 mi12:19:341:47:018:105:55
8:40
+0:18
25K
15.53 mi12:40:182:07:458:1320:44
8:33
-0:07
30K
18.64 mi13:09:462:37:138:2629:28
9:29
+0:56
20M
20.00 mi13:22:592:50:268:3113:13
9:44
+0:15
21M
21.00 mi13:36:513:04:188:4713:52
13:52
+4:08
35K
21.75 mi13:48:263:15:539:0011:35
15:29
+1:37
23M
23.00 mi14:08:063:35:339:2219:40
15:42
+0:13
24M
24.00 mi14:21:033:48:309:3112:57
12:57
-2:45
40K
24.85 mi14:32:303:59:579:3911:27
13:24
+0:27
25.2M
25.20 mi14:38:404:06:079:466:10
17:53
+4:29
Finish
26.22 mi14:55:064:22:3310:0116:26
16:08
-1:45

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

7:57 /mi

Average Pace

10:01 /mi

Slowest Pace

17:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:43

9% of race

Time at Steady Pace

2:25:43

56% of race

Time at Slower Pace

1:32:07

35% of race

Average Pace: 10:01 /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 mi10:57:4325:108:0625:10
8:06
#15378
10K
6.21 mi11:22:2649:538:0224:43
7:57
#14619
15K
9.32 mi11:47:381:15:058:0325:12
8:07
#14423
20K
12.43 mi12:13:391:41:068:0826:01
8:22
#14302
Half
13.11 mi12:19:341:47:018:105:55
8:40
#14425
25K
15.53 mi12:40:182:07:458:1320:44
8:33
#14184
30K
18.64 mi13:09:462:37:138:2629:28
9:29
#14426
20M
20.00 mi13:22:592:50:268:3113:13
9:44
#14509
21M
21.00 mi13:36:513:04:188:4713:52
13:52
#15405
35K
21.75 mi13:48:263:15:539:0011:35
15:29
#16453
23M
23.00 mi14:08:063:35:339:2219:40
15:42
#17687
24M
24.00 mi14:21:033:48:309:3112:57
12:57
#18058
40K
24.85 mi14:32:303:59:579:3911:27
13:24
#18342
25.2M
25.20 mi14:38:404:06:079:466:10
17:53
#18556
Finish
26.22 mi14:55:064:22:3310:0116:26
16:08
#19263
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi15378101691016914162(Top 55%)9668(Top 66%)9668(Top 1567%)
10K6.21 mi3.10 mi14619+7599880+2899880+28913869(Top 54%)9567(Top 66%)9567(Top 1551%)
15K9.32 mi3.11 mi14423+1969805+759805+7514162(Top 55%)9668(Top 66%)9668(Top 1567%)
20K12.43 mi3.11 mi14302+1219725+809725+8014101(Top 55%)9583(Top 66%)9583(Top 1553%)
Half13.11 mi0.68 mi14425-1239767-429767-4216662(Top 65%)10620(Top 73%)10620(Top 1721%)
25K15.53 mi2.42 mi14184+2419648+1199648+11913327(Top 52%)9074(Top 62%)9074(Top 1471%)
30K18.64 mi3.11 mi14426-2429660-129660-1215400(Top 60%)9728(Top 67%)9728(Top 1577%)
20M20.00 mi1.36 mi14509-839652+89652+815457(Top 60%)9504(Top 65%)9504(Top 1540%)
21M21.00 mi1.00 mi15405-8969965-3139965-31322139(Top 87%)12735(Top 87%)12735(Top 2064%)
35K21.75 mi0.75 mi16453-104810400-43510400-43525040(Top 98%)14235(Top 98%)14235(Top 2307%)
23M23.00 mi1.25 mi17687-123410892-49210892-49224992(Top 98%)14209(Top 97%)14209(Top 2303%)
24M24.00 mi1.00 mi18058-37111035-14311035-14322997(Top 90%)13053(Top 90%)13053(Top 2116%)
40K24.85 mi0.85 mi18342-28411155-12011155-12022836(Top 89%)12940(Top 89%)12940(Top 2097%)
25.2M25.20 mi0.35 mi18556-21411239-8411239-8424966(Top 98%)14174(Top 97%)14174(Top 2297%)
Finish26.22 mi1.02 mi19263-70711564-32511564-32525347(Top 99%)14419(Top 99%)14419(Top 2337%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14162

Males

9668

M65-69

9668

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

13869

Males

9567

M65-69

9567

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14162

Males

9668

M65-69

9668

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14101

Males

9583

M65-69

9583

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

16662

Males

10620

M65-69

10620

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13327

Males

9074

M65-69

9074

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

15400

Males

9728

M65-69

9728

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15457

Males

9504

M65-69

9504

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

22139

Males

12735

M65-69

12735

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

25040

Males

14235

M65-69

14235

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

24992

Males

14209

M65-69

14209

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

22997

Males

13053

M65-69

13053

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

22836

Males

12940

M65-69

12940

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

24966

Males

14174

M65-69

14174

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

25347

Males

14419

M65-69

14419

Passing Analysis

Category:
Athletes Passed
2205
Passed By
6090
Net Change
-3885
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15378
5K → 10K80950+759#15378#14619
10K → 15K344148+196#14619#14423
15K → 20K291170+121#14423#14302
20K → Half19142-123#14302#14425
Half → 25K33695+241#14425#14184
25K → 30K213455-242#14184#14426
30K → 20M113196-83#14426#14509
20M → 21M14910-896#14509#15405
21M → 35K71055-1048#15405#16453
35K → 23M71241-1234#16453#17687
23M → 24M17388-371#17687#18058
24M → 40K16300-284#18058#18342
40K → 25.2M8222-214#18342#18556
25.2M → Finish11718-707#18556#19263
TOTALS22056090-3885
📊

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