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BOSTON MARATHON 2023

Mark Lee

Bib: 9826•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 50%
Masters (Masters Men)
#0 / 9891
Top 39%
Division (M50-54)
#0 / 2052
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:36
Rank: #10477
Start → 5K
23:36 | 7:36/mi
10K· 6.21 mi
46:48
Rank: #10314 (+163)
5K → 10K
23:12 | 7:28/mi
15K· 9.32 mi
1:09:58
Rank: #10117 (+197)
10K → 15K
23:10 | 7:27/mi
20K· 12.43 mi
1:34:44
Rank: #10896 (-779)
15K → 20K
24:46 | 7:58/mi
Half· 13.11 mi
1:39:52
Rank: #10872 (+24)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:58:33
Rank: #10740 (+132)
Half → 25K
18:41 | 7:42/mi
30K· 18.64 mi
2:23:00
Rank: #10532 (+208)
25K → 30K
24:27 | 7:52/mi
20M
2:33:45
Rank: #10457 (+75)
30K → 20M
10:45 | 7:55/mi
21M
2:41:54
Rank: #10302 (+155)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:47:26
Rank: #10182 (+120)
21M → 35K
5:32 | 7:24/mi
23M
2:56:53
Rank: #9920 (+262)
35K → 23M
9:27 | 7:33/mi
24M
3:04:19
Rank: #9764 (+156)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
3:10:44
Rank: #9612 (+152)
24M → 40K
6:25 | 7:30/mi
25.2M
3:13:32
Rank: #9551 (+61)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:20:46
Rank: #9388 (+163)
25.2M → Finish
7:14 | 7:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:52
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:40:54
Pace7:42 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2423:367:3623:36
7:36
-
10K
6.21 mi11:12:3646:487:3223:12
7:28
-0:08
15K
9.32 mi11:35:461:09:587:3023:10
7:27
-0:01
20K
12.43 mi12:00:321:34:447:3724:46
7:58
+0:31
Half
13.11 mi12:05:401:39:527:375:08
7:31
-0:27
25K
15.53 mi12:24:211:58:337:3818:41
7:42
+0:11
30K
18.64 mi12:48:482:23:007:4024:27
7:52
+0:10
20M
20.00 mi12:59:332:33:457:4110:45
7:55
+0:03
21M
21.00 mi13:07:422:41:547:438:09
8:09
+0:14
35K
21.75 mi13:13:142:47:267:425:32
7:24
-0:45
23M
23.00 mi13:22:412:56:537:419:27
7:33
+0:09
24M
24.00 mi13:30:073:04:197:417:26
7:26
-0:07
40K
24.85 mi13:36:323:10:447:406:25
7:30
+0:04
25.2M
25.20 mi13:39:203:13:327:412:48
8:07
+0:37
Finish
26.22 mi13:46:343:20:467:407:14
7:06
-1:01

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

7:06 /mi

Average Pace

7:40 /mi

Slowest Pace

8:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:51

65% of race

Time at Steady Pace

1:10:55

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi10:49:2423:367:3623:36
7:36
#10477
10K
6.21 mi11:12:3646:487:3223:12
7:28
#10314
15K
9.32 mi11:35:461:09:587:3023:10
7:27
#10117
20K
12.43 mi12:00:321:34:447:3724:46
7:58
#10896
Half
13.11 mi12:05:401:39:527:375:08
7:31
#10872
25K
15.53 mi12:24:211:58:337:3818:41
7:42
#10740
30K
18.64 mi12:48:482:23:007:4024:27
7:52
#10532
20M
20.00 mi12:59:332:33:457:4110:45
7:55
#10457
21M
21.00 mi13:07:422:41:547:438:09
8:09
#10302
35K
21.75 mi13:13:142:47:267:425:32
7:24
#10182
23M
23.00 mi13:22:412:56:537:419:27
7:33
#9920
24M
24.00 mi13:30:073:04:197:417:26
7:26
#9764
40K
24.85 mi13:36:323:10:447:406:25
7:30
#9612
25.2M
25.20 mi13:39:203:13:327:412:48
8:07
#9551
Finish
26.22 mi13:46:343:20:467:407:14
7:06
#9388
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10477838983899817(Top 37%)8046(Top 53%)8046(Top 392%)
10K6.21 mi3.10 mi10314+1638321+688321+6810191(Top 38%)8268(Top 54%)8268(Top 403%)
15K9.32 mi3.11 mi10117+1978232+898232+899817(Top 37%)8046(Top 53%)8046(Top 392%)
20K12.43 mi3.11 mi10896-7798594-3628594-36213181(Top 50%)9516(Top 63%)9516(Top 464%)
Half13.11 mi0.68 mi10872+248586+88586+810357(Top 39%)8266(Top 54%)8266(Top 403%)
25K15.53 mi2.42 mi10740+1328508+788508+7810309(Top 39%)8153(Top 54%)8153(Top 397%)
30K18.64 mi3.11 mi10532+2088347+1618347+1619884(Top 37%)7767(Top 51%)7767(Top 379%)
20M20.00 mi1.36 mi10457+758294+538294+539611(Top 36%)7527(Top 50%)7527(Top 367%)
21M21.00 mi1.00 mi10302+1558187+1078187+1078303(Top 31%)6655(Top 44%)6655(Top 324%)
35K21.75 mi0.75 mi10182+1208119+688119+687771(Top 29%)6367(Top 42%)6367(Top 310%)
23M23.00 mi1.25 mi9920+2627951+1687951+1686729(Top 25%)5660(Top 37%)5660(Top 276%)
24M24.00 mi1.00 mi9764+1567834+1177834+1177270(Top 27%)5883(Top 39%)5883(Top 287%)
40K24.85 mi0.85 mi9612+1527725+1097725+1096770(Top 25%)5507(Top 36%)5507(Top 268%)
25.2M25.20 mi0.35 mi9551+617676+497676+497209(Top 27%)5723(Top 38%)5723(Top 279%)
Finish26.22 mi1.02 mi9388+1637563+1137563+1135824(Top 22%)4816(Top 32%)4816(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

9817

Males

8046

M50-54

8046

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10191

Males

8268

M50-54

8268

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

9817

Males

8046

M50-54

8046

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13181

Males

9516

M50-54

9516

20K→Half

12.4 - 13.1 mi

Top 39%
×2stories
+19ft-37ft

Overall

10357

Males

8266

M50-54

8266

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10309

Males

8153

M50-54

8153

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

9884

Males

7767

M50-54

7767

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9611

Males

7527

M50-54

7527

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8303

Males

6655

M50-54

6655

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7771

Males

6367

M50-54

6367

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6729

Males

5660

M50-54

5660

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7270

Males

5883

M50-54

5883

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6770

Males

5507

M50-54

5507

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7209

Males

5723

M50-54

5723

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5824

Males

4816

M50-54

4816

Passing Analysis

Category:
Athletes Passed
2453*
Passed By
1364
Net Change
+1089
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10477
5K → 10K383*220+163#10477#10314
10K → 15K28992+197#10314#10117
15K → 20K24803-779#10117#10896
20K → Half4218+24#10896#10872
Half → 25K19058+132#10872#10740
25K → 30K28072+208#10740#10532
30K → 20M113*38+75#10532#10457
20M → 21M17823+155#10457#10302
21M → 35K1244+120#10302#10182
35K → 23M263*1+262#10182#9920
23M → 24M1626+156#9920#9764
24M → 40K161*9+152#9764#9612
40K → 25.2M7211+61#9612#9551
25.2M → Finish1729+163#9551#9388
TOTALS2453*1364+1089

* 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