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BOSTON MARATHON 2024

Chi Man Lee

Bib: 10948•M

NT

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 21%
Gender (Male)
#0 / 14578
Top 32%
Masters (Masters Men)
#0 / 9729
Top 20%
Division (M50-54)
#0 / 1935
Top 16%
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
6:57/mi
21:35
↑ 97↓ 3451.5%
10K· 6.21 mi
6:59/mi
43:17
↑ 79↓ 1380.4%
15K· 9.32 mi
7:06/mi
1:05:19
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:27:51
↑ 106↓ 860.1%
Half· 13.11 mi
7:07/mi
1:32:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:23/mi
1:50:35
↑ 66↓ 880.2%
30K· 18.64 mi
7:37/mi
2:14:14
↑ 181↓ 1480.2%
20M
7:45/mi
2:24:46
↑ 64↓ 500.2%
21M
8:14/mi
2:33:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:40/mi
2:38:44
↑ 17↓ 861.7%
23M
8:01/mi
2:48:46
↑ 23↓ 630.6%
24M
7:44/mi
2:56:30
↓ 821.3%
40K· 24.85 mi
7:53/mi
3:03:14
↓ 200.3%
25.2M
8:36/mi
3:06:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:13:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:42
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:41:03
Pace7:43 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1321:356:5721:35
6:57
-
10K
6.21 mi11:09:5543:176:5821:42
6:59
+0:02
15K
9.32 mi11:31:571:05:197:0022:02
7:06
+0:07
20K
12.43 mi11:54:291:27:517:0422:32
7:15
+0:09
Half
13.11 mi11:59:201:32:427:044:51
7:07
-0:08
25K
15.53 mi12:17:131:50:357:0717:53
7:23
+0:16
30K
18.64 mi12:40:522:14:147:1223:39
7:37
+0:14
20M
20.00 mi12:51:242:24:467:1410:32
7:45
+0:08
21M
21.00 mi12:59:382:33:007:178:14
8:14
+0:29
35K
21.75 mi13:05:222:38:447:185:44
7:40
-0:34
23M
23.00 mi13:15:242:48:467:2010:02
8:01
+0:21
24M
24.00 mi13:23:082:56:307:217:44
7:44
-0:17
40K
24.85 mi13:29:523:03:147:226:44
7:53
+0:09
25.2M
25.20 mi13:32:503:06:127:232:58
8:36
+0:43
Finish
26.22 mi13:40:233:13:457:247:33
7:25
-1:11

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

6:57 /mi

Average Pace

7:24 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:35

57% of race

Time at Steady Pace

55:12

28% of race

Time at Slower Pace

27:58

14% of race

Average Pace: 7:23 /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 mi10:48:1321:356:5721:35
6:57
#6707
10K
6.21 mi11:09:5543:176:5821:42
6:59
#6606
15K
9.32 mi11:31:571:05:197:0022:02
7:06
#6646
20K
12.43 mi11:54:291:27:517:0422:32
7:15
#6589
Half
13.11 mi11:59:201:32:427:044:51
7:07
#6575
25K
15.53 mi12:17:131:50:357:0717:53
7:23
#6446
30K
18.64 mi12:40:522:14:147:1223:39
7:37
#6186
20M
20.00 mi12:51:242:24:467:1410:32
7:45
#6034
21M
21.00 mi12:59:382:33:007:178:14
8:14
#5885
35K
21.75 mi13:05:222:38:447:185:44
7:40
#5822
23M
23.00 mi13:15:242:48:467:2010:02
8:01
#5725
24M
24.00 mi13:23:082:56:307:217:44
7:44
#5640
40K
24.85 mi13:29:523:03:147:226:44
7:53
#5536
25.2M
25.20 mi13:32:503:06:127:232:58
8:36
#5482
Finish
26.22 mi13:40:233:13:457:247:33
7:25
#5410
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6707595659566746(Top 26%)5898(Top 40%)5898(Top 305%)
10K6.21 mi3.10 mi6606+1015868+885868+886548(Top 26%)5795(Top 40%)5795(Top 299%)
15K9.32 mi3.11 mi6646-405873-55873-56746(Top 26%)5898(Top 40%)5898(Top 305%)
20K12.43 mi3.11 mi6589+575818+555818+556680(Top 26%)5764(Top 40%)5764(Top 298%)
Half13.11 mi0.68 mi6575+145806+125806+126364(Top 25%)5562(Top 38%)5562(Top 287%)
25K15.53 mi2.42 mi6446+1295675+1315675+1316239(Top 24%)5332(Top 37%)5332(Top 276%)
30K18.64 mi3.11 mi6186+2605432+2435432+2435675(Top 22%)4789(Top 33%)4789(Top 247%)
20M20.00 mi1.36 mi6034+1525285+1475285+1475453(Top 21%)4530(Top 31%)4530(Top 234%)
21M21.00 mi1.00 mi5885+1495151+1345151+1345050(Top 20%)4132(Top 28%)4132(Top 214%)
35K21.75 mi0.75 mi5822+635088+635088+635888(Top 23%)4613(Top 32%)4613(Top 238%)
23M23.00 mi1.25 mi5725+974977+1114977+1115795(Top 23%)4413(Top 30%)4413(Top 228%)
24M24.00 mi1.00 mi5640+854891+864891+865197(Top 20%)4021(Top 28%)4021(Top 208%)
40K24.85 mi0.85 mi5536+1044793+984793+985137(Top 20%)3877(Top 27%)3877(Top 200%)
25.2M25.20 mi0.35 mi5482+544741+524741+524839(Top 19%)3645(Top 25%)3645(Top 188%)
Finish26.22 mi1.02 mi5410+724660+814660+815093(Top 20%)3843(Top 26%)3843(Top 199%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

6746

Males

5898

M50-54

5898

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

6548

Males

5795

M50-54

5795

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

6746

Males

5898

M50-54

5898

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6680

Males

5764

M50-54

5764

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

6364

Males

5562

M50-54

5562

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6239

Males

5332

M50-54

5332

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

5675

Males

4789

M50-54

4789

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

5453

Males

4530

M50-54

4530

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5050

Males

4132

M50-54

4132

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

5888

Males

4613

M50-54

4613

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

5795

Males

4413

M50-54

4413

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5197

Males

4021

M50-54

4021

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5137

Males

3877

M50-54

3877

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4839

Males

3645

M50-54

3645

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5093

Males

3843

M50-54

3843

Passing Analysis

Category:
Athletes Passed
2214
Passed By
917
Net Change
+1297
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6707
5K → 10K256155+101#6707#6606
10K → 15K137177-40#6606#6646
15K → 20K192135+57#6646#6589
20K → Half3218+14#6589#6575
Half → 25K21384+129#6575#6446
25K → 30K35696+260#6446#6186
30K → 20M17725+152#6186#6034
20M → 21M18334+149#6034#5885
21M → 35K10037+63#5885#5822
35K → 23M15457+97#5822#5725
23M → 24M12338+85#5725#5640
24M → 40K12117+104#5640#5536
40K → 25.2M639+54#5536#5482
25.2M → Finish10735+72#5482#5410
TOTALS2214917+1297
📊

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