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BOSTON MARATHON 2023

Jerry Lin

Bib: 14502•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:41/mi
23:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
47:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:03
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:36:24
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:41:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
2:00:40
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:26:12
↑ 181↓ 1480.2%
20M
8:08/mi
2:37:15
↑ 64↓ 500.2%
21M
8:45/mi
2:46:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:51:53
↑ 17↓ 861.7%
23M
8:18/mi
3:02:16
↑ 23↓ 630.6%
24M
8:00/mi
3:10:16
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:17:21
↓ 200.3%
25.2M
8:54/mi
3:20:25
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:28:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:47:05
Pace8:10 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2723:517:4123:51
7:41
-
10K
6.21 mi11:17:3047:547:4324:03
7:44
+0:03
15K
9.32 mi11:41:391:12:037:4424:09
7:46
+0:02
20K
12.43 mi12:06:001:36:247:4524:21
7:50
+0:04
Half
13.11 mi12:11:141:41:387:455:14
7:40
-0:10
25K
15.53 mi12:30:162:00:407:4619:02
7:51
+0:11
30K
18.64 mi12:55:482:26:127:5125:32
8:13
+0:22
20M
20.00 mi13:06:512:37:157:5211:03
8:08
-0:05
21M
21.00 mi13:15:362:46:007:548:45
8:45
+0:37
35K
21.75 mi13:21:292:51:537:545:53
7:52
-0:53
23M
23.00 mi13:31:523:02:167:5510:23
8:18
+0:26
24M
24.00 mi13:39:523:10:167:568:00
8:00
-0:18
40K
24.85 mi13:46:573:17:217:567:05
8:17
+0:17
25.2M
25.20 mi13:50:013:20:257:573:04
8:54
+0:37
Finish
26.22 mi13:58:193:28:437:588:18
8:09
-0:45

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

7:40 /mi

Average Pace

7:58 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:54

94% of race

Time at Steady Pace

11:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:58 /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 mi10:53:2723:517:4123:51
7:41
#11234
10K
6.21 mi11:17:3047:547:4324:03
7:44
#11885
15K
9.32 mi11:41:391:12:037:4424:09
7:46
#12070
20K
12.43 mi12:06:001:36:247:4524:21
7:50
#12018
Half
13.11 mi12:11:141:41:387:455:14
7:40
#12003
25K
15.53 mi12:30:162:00:407:4619:02
7:51
#11868
30K
18.64 mi12:55:482:26:127:5125:32
8:13
#11971
20M
20.00 mi13:06:512:37:157:5211:03
8:08
#11883
21M
21.00 mi13:15:362:46:007:548:45
8:45
#11909
35K
21.75 mi13:21:292:51:537:545:53
7:52
#11869
23M
23.00 mi13:31:523:02:167:5510:23
8:18
#11844
24M
24.00 mi13:39:523:10:167:568:00
8:00
#11807
40K
24.85 mi13:46:573:17:217:567:05
8:17
#11803
25.2M
25.20 mi13:50:013:20:257:573:04
8:54
#11803
Finish
26.22 mi13:58:193:28:437:588:18
8:09
#11863
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi112348768876812474(Top 47%)9286(Top 61%)9286(Top 453%)
10K6.21 mi3.10 mi11885-6519058-2909058-29012586(Top 47%)9371(Top 62%)9371(Top 457%)
15K9.32 mi3.11 mi12070-1859123-659123-6512474(Top 47%)9286(Top 61%)9286(Top 453%)
20K12.43 mi3.11 mi12018+529079+449079+4412039(Top 45%)9031(Top 60%)9031(Top 440%)
Half13.11 mi0.68 mi12003+159066+139066+1311584(Top 44%)8897(Top 59%)8897(Top 434%)
25K15.53 mi2.42 mi11868+1358998+688998+6811502(Top 43%)8717(Top 57%)8717(Top 425%)
30K18.64 mi3.11 mi11971-1038995+38995+312453(Top 47%)8996(Top 59%)8996(Top 438%)
20M20.00 mi1.36 mi11883+888936+598936+5911232(Top 42%)8380(Top 55%)8380(Top 408%)
21M21.00 mi1.00 mi11909-268935+18935+111939(Top 45%)8556(Top 56%)8556(Top 417%)
35K21.75 mi0.75 mi11869+408900+358900+3511094(Top 42%)8163(Top 54%)8163(Top 398%)
23M23.00 mi1.25 mi11844+258873+278873+2711823(Top 44%)8388(Top 55%)8388(Top 409%)
24M24.00 mi1.00 mi11807+378836+378836+3711221(Top 42%)8005(Top 53%)8005(Top 390%)
40K24.85 mi0.85 mi11803+48804+328804+3211892(Top 45%)8271(Top 55%)8271(Top 403%)
25.2M25.20 mi0.35 mi118038795+98795+911838(Top 44%)8181(Top 54%)8181(Top 399%)
Finish26.22 mi1.02 mi11863-608801-68801-613046(Top 49%)8791(Top 58%)8791(Top 428%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12474

Males

9286

M50-54

9286

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12586

Males

9371

M50-54

9371

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12474

Males

9286

M50-54

9286

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12039

Males

9031

M50-54

9031

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

11584

Males

8897

M50-54

8897

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11502

Males

8717

M50-54

8717

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

12453

Males

8996

M50-54

8996

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11232

Males

8380

M50-54

8380

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

11939

Males

8556

M50-54

8556

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11094

Males

8163

M50-54

8163

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11823

Males

8388

M50-54

8388

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11221

Males

8005

M50-54

8005

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11892

Males

8271

M50-54

8271

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11838

Males

8181

M50-54

8181

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13046

Males

8791

M50-54

8791

Passing Analysis

Category:
Athletes Passed
1449
Passed By
2078
Net Change
-629
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11234
5K → 10K104755-651#11234#11885
10K → 15K132317-185#11885#12070
15K → 20K193141+52#12070#12018
20K → Half3217+15#12018#12003
Half → 25K20469+135#12003#11868
25K → 30K159262-103#11868#11971
30K → 20M13951+88#11971#11883
20M → 21M86112-26#11883#11909
21M → 35K6828+40#11909#11869
35K → 23M10176+25#11869#11844
23M → 24M8447+37#11844#11807
24M → 40K6965+4#11807#11803
40K → 25.2M27270#11803#11803
25.2M → Finish51111-60#11803#11863
TOTALS14492078-629
📊

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