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BOSTON MARATHON 2023

Jon Lawson

Bib: 6195•M

RI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 46%
Masters (Masters Men)
#0 / 9891
Top 33%
Division (M50-54)
#0 / 2052
Top 29%
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
7:00/mi
21:44
↑ 97↓ 3451.5%
10K· 6.21 mi
6:58/mi
43:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:04/mi
1:05:21
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:29:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:34:39
↑ 19↓ 370.5%
25K· 15.53 mi
7:29/mi
1:52:48
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:16:45
↑ 181↓ 1480.2%
20M
9:05/mi
2:29:05
↑ 64↓ 500.2%
21M
8:12/mi
2:37:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:07/mi
2:43:21
↑ 17↓ 861.7%
23M
7:52/mi
2:53:12
↑ 23↓ 630.6%
24M
7:32/mi
3:00:44
↓ 821.3%
40K· 24.85 mi
7:33/mi
3:07:11
↓ 200.3%
25.2M
7:47/mi
3:09:52
↑ 13↓ 160.2%
Finish· 26.22 mi
7:04/mi
3:17:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:39
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:42:25
Pace7:49 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2021:447:0021:44
7:00
-
10K
6.21 mi10:46:5943:236:5921:39
6:58
-0:02
15K
9.32 mi11:08:571:05:217:0121:58
7:04
+0:06
20K
12.43 mi11:33:221:29:467:1324:25
7:52
+0:48
Half
13.11 mi11:38:151:34:397:134:53
7:09
-0:43
25K
15.53 mi11:56:241:52:487:1618:09
7:29
+0:20
30K
18.64 mi12:20:212:16:457:2023:57
7:43
+0:14
20M
20.00 mi12:32:412:29:057:2712:20
9:05
+1:22
21M
21.00 mi12:40:532:37:177:298:12
8:12
-0:53
35K
21.75 mi12:46:572:43:217:316:04
8:07
-0:05
23M
23.00 mi12:56:482:53:127:329:51
7:52
-0:15
24M
24.00 mi13:04:203:00:447:327:32
7:32
-0:20
40K
24.85 mi13:10:473:07:117:326:27
7:33
+0:01
25.2M
25.20 mi13:13:283:09:527:322:41
7:47
+0:14
Finish
26.22 mi13:20:403:17:047:317:12
7:04
-0:43

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

6:58 /mi

Average Pace

7:31 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:26

39% of race

Time at Steady Pace

58:46

30% of race

Time at Slower Pace

1:00:52

31% of race

Average Pace: 7:31 /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 mi10:25:2021:447:0021:44
7:00
#6228
10K
6.21 mi10:46:5943:236:5921:39
6:58
#6402
15K
9.32 mi11:08:571:05:217:0121:58
7:04
#6571
20K
12.43 mi11:33:221:29:467:1324:25
7:52
#7718
Half
13.11 mi11:38:151:34:397:134:53
7:09
#7698
25K
15.53 mi11:56:241:52:487:1618:09
7:29
#7793
30K
18.64 mi12:20:212:16:457:2023:57
7:43
#7892
20M
20.00 mi12:32:412:29:057:2712:20
9:05
#8589
21M
21.00 mi12:40:532:37:177:298:12
8:12
#8566
35K
21.75 mi12:46:572:43:217:316:04
8:07
#8716
23M
23.00 mi12:56:482:53:127:329:51
7:52
#8713
24M
24.00 mi13:04:203:00:447:327:32
7:32
#8651
40K
24.85 mi13:10:473:07:117:326:27
7:33
#8559
25.2M
25.20 mi13:13:283:09:527:322:41
7:47
#8481
Finish
26.22 mi13:20:403:17:047:317:12
7:04
#8315
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6228568256826972(Top 26%)6228(Top 41%)6228(Top 304%)
10K6.21 mi3.10 mi6402-1745794-1125794-1126610(Top 25%)5942(Top 39%)5942(Top 290%)
15K9.32 mi3.11 mi6571-1695930-1365930-1366972(Top 26%)6228(Top 41%)6228(Top 304%)
20K12.43 mi3.11 mi7718-11476759-8296759-82912220(Top 46%)9102(Top 60%)9102(Top 444%)
Half13.11 mi0.68 mi7698+206740+196740+197564(Top 28%)6623(Top 44%)6623(Top 323%)
25K15.53 mi2.42 mi7793-956782-426782-428656(Top 33%)7234(Top 48%)7234(Top 353%)
30K18.64 mi3.11 mi7892-996810-286810-288696(Top 33%)7093(Top 47%)7093(Top 346%)
20M20.00 mi1.36 mi8589-6977228-4187228-41816896(Top 63%)10778(Top 71%)10778(Top 525%)
21M21.00 mi1.00 mi8566+237194+347194+348598(Top 32%)6834(Top 45%)6834(Top 333%)
35K21.75 mi0.75 mi8716-1507277-837277-8312794(Top 48%)8881(Top 59%)8881(Top 433%)
23M23.00 mi1.25 mi8713+37249+287249+288836(Top 33%)6879(Top 45%)6879(Top 335%)
24M24.00 mi1.00 mi8651+627189+607189+607920(Top 30%)6268(Top 41%)6268(Top 305%)
40K24.85 mi0.85 mi8559+927115+747115+746961(Top 26%)5614(Top 37%)5614(Top 274%)
25.2M25.20 mi0.35 mi8481+787060+557060+555306(Top 20%)4486(Top 30%)4486(Top 219%)
Finish26.22 mi1.02 mi8315+1666930+1306930+1305619(Top 21%)4673(Top 31%)4673(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

6972

Males

6228

M50-54

6228

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6610

Males

5942

M50-54

5942

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

6972

Males

6228

M50-54

6228

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

12220

Males

9102

M50-54

9102

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7564

Males

6623

M50-54

6623

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8656

Males

7234

M50-54

7234

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8696

Males

7093

M50-54

7093

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16896

Males

10778

M50-54

10778

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

8598

Males

6834

M50-54

6834

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12794

Males

8881

M50-54

8881

35K→23M

21.8 - 23.0 mi

Top 33%
×5story building
+23ft-63ft

Overall

8836

Males

6879

M50-54

6879

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

7920

Males

6268

M50-54

6268

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6961

Males

5614

M50-54

5614

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5306

Males

4486

M50-54

4486

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5619

Males

4673

M50-54

4673

Passing Analysis

Category:
Athletes Passed
1011
Passed By
3098
Net Change
-2087
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6228
5K → 10K108282-174#6228#6402
10K → 15K60229-169#6402#6571
15K → 20K51152-1147#6571#7718
20K → Half3414+20#7718#7698
Half → 25K62157-95#7698#7793
25K → 30K101200-99#7793#7892
30K → 20M9706-697#7892#8589
20M → 21M8360+23#8589#8566
21M → 35K13163-150#8566#8716
35K → 23M8279+3#8716#8713
23M → 24M9836+62#8713#8651
24M → 40K10210+92#8651#8559
40K → 25.2M802+78#8559#8481
25.2M → Finish1748+166#8481#8315
TOTALS10113098-2087
📊

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