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BOSTON MARATHON 2023

Seth Harris

Bib: 29131•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 30%
Division (M40-44)
#0 / 2241
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
7:10/mi
22:15
↑ 97↓ 3451.5%
10K· 6.21 mi
6:55/mi
43:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:05/mi
1:05:43
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:28:16
↑ 106↓ 860.1%
Half· 13.11 mi
7:20/mi
1:33:16
↑ 19↓ 370.5%
25K· 15.53 mi
7:30/mi
1:51:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:16:05
↑ 181↓ 1480.2%
20M
7:43/mi
2:26:34
↑ 64↓ 500.2%
21M
8:06/mi
2:34:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:04/mi
2:39:57
↑ 17↓ 861.7%
23M
7:34/mi
2:49:25
↑ 23↓ 630.6%
24M
7:42/mi
2:57:07
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:04:10
↓ 200.3%
25.2M
8:10/mi
3:06:59
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:15:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:16
Pace7:07 /mi
2nd Half
Distance13.11 mi
Time1:41:44
Pace7:46 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:4822:157:1022:15
7:10
-
10K
6.21 mi12:01:1743:447:0221:29
6:55
-0:15
15K
9.32 mi12:23:161:05:437:0321:59
7:05
+0:10
20K
12.43 mi12:45:491:28:167:0622:33
7:15
+0:10
Half
13.11 mi12:50:491:33:167:075:00
7:20
+0:05
25K
15.53 mi13:08:591:51:267:1018:10
7:30
+0:10
30K
18.64 mi13:33:382:16:057:1824:39
7:56
+0:26
20M
20.00 mi13:44:072:26:347:2010:29
7:43
-0:13
21M
21.00 mi13:52:132:34:407:228:06
8:06
+0:23
35K
21.75 mi13:57:302:39:577:215:17
7:04
-1:02
23M
23.00 mi14:06:582:49:257:229:28
7:34
+0:30
24M
24.00 mi14:14:402:57:077:237:42
7:42
+0:08
40K
24.85 mi14:21:433:04:107:257:03
8:15
+0:33
25.2M
25.20 mi14:24:323:06:597:252:49
8:10
-0:05
Finish
26.22 mi14:32:333:15:007:278:01
7:52
-0:18

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

6:55 /mi

Average Pace

7:27 /mi

Slowest Pace

8:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:11

65% of race

Time at Steady Pace

58:57

30% of race

Time at Slower Pace

9:52

5% of race

Average Pace: 7:26 /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 mi11:39:4822:157:1022:15
7:10
#7260
10K
6.21 mi12:01:1743:447:0221:29
6:55
#6729
15K
9.32 mi12:23:161:05:437:0321:59
7:05
#6784
20K
12.43 mi12:45:491:28:167:0622:33
7:15
#6953
Half
13.11 mi12:50:491:33:167:075:00
7:20
#7019
25K
15.53 mi13:08:591:51:267:1018:10
7:30
#7216
30K
18.64 mi13:33:382:16:057:1824:39
7:56
#7641
20M
20.00 mi13:44:072:26:347:2010:29
7:43
#7651
21M
21.00 mi13:52:132:34:407:228:06
8:06
#7630
35K
21.75 mi13:57:302:39:577:215:17
7:04
#7530
23M
23.00 mi14:06:582:49:257:229:28
7:34
#7439
24M
24.00 mi14:14:402:57:077:237:42
7:42
#7480
40K
24.85 mi14:21:433:04:107:257:03
8:15
#7612
25.2M
25.20 mi14:24:323:06:597:252:49
8:10
#7602
Finish
26.22 mi14:32:333:15:007:278:01
7:52
#7723
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7260646964697007(Top 26%)6252(Top 41%)6252(Top 279%)
10K6.21 mi3.10 mi6729+5316061+4086061+4086256(Top 23%)5666(Top 37%)5666(Top 253%)
15K9.32 mi3.11 mi6784-556094-336094-337007(Top 26%)6252(Top 41%)6252(Top 279%)
20K12.43 mi3.11 mi6953-1696217-1236217-1237490(Top 28%)6555(Top 43%)6555(Top 293%)
Half13.11 mi0.68 mi7019-666262-456262-458755(Top 33%)7346(Top 48%)7346(Top 328%)
25K15.53 mi2.42 mi7216-1976397-1356397-1358711(Top 33%)7265(Top 48%)7265(Top 324%)
30K18.64 mi3.11 mi7641-4256656-2596656-25910372(Top 39%)8014(Top 53%)8014(Top 358%)
20M20.00 mi1.36 mi7651-106635+216635+218270(Top 31%)6755(Top 45%)6755(Top 301%)
21M21.00 mi1.00 mi7630+216602+336602+337983(Top 30%)6460(Top 43%)6460(Top 288%)
35K21.75 mi0.75 mi7530+1006525+776525+775708(Top 21%)5039(Top 33%)5039(Top 225%)
23M23.00 mi1.25 mi7439+916446+796446+796795(Top 26%)5693(Top 38%)5693(Top 254%)
24M24.00 mi1.00 mi7480-416451-56451-59059(Top 34%)6915(Top 46%)6915(Top 309%)
40K24.85 mi0.85 mi7612-1326525-746525-7411620(Top 44%)8122(Top 54%)8122(Top 362%)
25.2M25.20 mi0.35 mi7602+106508+176508+177453(Top 28%)5853(Top 39%)5853(Top 261%)
Finish26.22 mi1.02 mi7723-1216561-536561-5311108(Top 42%)7832(Top 52%)7832(Top 349%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7007

Males

6252

M40-44

6252

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6256

Males

5666

M40-44

5666

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7007

Males

6252

M40-44

6252

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7490

Males

6555

M40-44

6555

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

8755

Males

7346

M40-44

7346

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8711

Males

7265

M40-44

7265

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10372

Males

8014

M40-44

8014

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8270

Males

6755

M40-44

6755

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

7983

Males

6460

M40-44

6460

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5708

Males

5039

M40-44

5039

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6795

Males

5693

M40-44

5693

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9059

Males

6915

M40-44

6915

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11620

Males

8122

M40-44

8122

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7453

Males

5853

M40-44

5853

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11108

Males

7832

M40-44

7832

Passing Analysis

Category:
Athletes Passed
1303
Passed By
1766
Net Change
-463
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7260
5K → 10K57443+531#7260#6729
10K → 15K95150-55#6729#6784
15K → 20K55224-169#6784#6953
20K → Half369-66#6953#7019
Half → 25K38235-197#7019#7216
25K → 30K44469-425#7216#7641
30K → 20M6878-10#7641#7651
20M → 21M7251+21#7651#7630
21M → 35K1033+100#7630#7530
35K → 23M11726+91#7530#7439
23M → 24M4889-41#7439#7480
24M → 40K28160-132#7480#7612
40K → 25.2M2616+10#7612#7602
25.2M → Finish32153-121#7602#7723
TOTALS13031766-463
📊

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