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BOSTON MARATHON 2023

James Posey

Bib: 12590•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Male)
#0 / 15176
Top 42%
Masters (Masters Men)
#0 / 9891
Top 29%
Division (M50-54)
#0 / 2052
Top 24%
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
7:37/mi
23:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:09:45
↑ 67↓ 78
20K· 12.43 mi
7:27/mi
1:32:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:37:50
↑ 19↓ 370.5%
25K· 15.53 mi
7:29/mi
1:55:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:33/mi
2:19:25
↑ 181↓ 1480.2%
20M
7:22/mi
2:29:25
↑ 64↓ 500.2%
21M
7:41/mi
2:37:06
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:42:21
↑ 17↓ 861.7%
23M
7:13/mi
2:51:23
↑ 23↓ 630.6%
24M
6:56/mi
2:58:19
↓ 821.3%
40K· 24.85 mi
7:03/mi
3:04:21
↓ 200.3%
25.2M
7:38/mi
3:06:59
↑ 13↓ 160.2%
Finish· 26.22 mi
6:44/mi
3:13:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:50
Pace7:28 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:01
Pace7:19 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3723:397:3723:39
7:37
-
10K
6.21 mi11:14:3446:367:3022:57
7:23
-0:14
15K
9.32 mi11:37:431:09:457:2923:09
7:27
+0:04
20K
12.43 mi12:00:521:32:547:2923:09
7:27
0:00
Half
13.11 mi12:05:481:37:507:284:56
7:14
-0:13
25K
15.53 mi12:23:561:55:587:2818:08
7:29
+0:15
30K
18.64 mi12:47:232:19:257:2923:27
7:33
+0:04
20M
20.00 mi12:57:232:29:257:2810:00
7:22
-0:11
21M
21.00 mi13:05:042:37:067:297:41
7:41
+0:19
35K
21.75 mi13:10:192:42:217:285:15
7:01
-0:40
23M
23.00 mi13:19:212:51:237:279:02
7:13
+0:12
24M
24.00 mi13:26:172:58:197:266:56
6:56
-0:17
40K
24.85 mi13:32:193:04:217:256:02
7:03
+0:07
25.2M
25.20 mi13:34:573:06:597:252:38
7:38
+0:35
Finish
26.22 mi13:41:493:13:517:246:52
6:44
-0:54

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

6:44 /mi

Average Pace

7:24 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:00

37% of race

Time at Steady Pace

2:01:51

63% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi10:51:3723:397:3723:39
7:37
#10625
10K
6.21 mi11:14:3446:367:3022:57
7:23
#10008
15K
9.32 mi11:37:431:09:457:2923:09
7:27
#9880
20K
12.43 mi12:00:521:32:547:2923:09
7:27
#9609
Half
13.11 mi12:05:481:37:507:284:56
7:14
#9529
25K
15.53 mi12:23:561:55:587:2818:08
7:29
#9345
30K
18.64 mi12:47:232:19:257:2923:27
7:33
#8994
20M
20.00 mi12:57:232:29:257:2810:00
7:22
#8721
21M
21.00 mi13:05:042:37:067:297:41
7:41
#8511
35K
21.75 mi13:10:192:42:217:285:15
7:01
#8377
23M
23.00 mi13:19:212:51:237:279:02
7:13
#8091
24M
24.00 mi13:26:172:58:197:266:56
6:56
#7863
40K
24.85 mi13:32:193:04:217:256:02
7:03
#7666
25.2M
25.20 mi13:34:573:06:597:252:38
7:38
#7598
Finish
26.22 mi13:41:493:13:517:246:52
6:44
#7394
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10625845884589760(Top 37%)8008(Top 53%)8008(Top 390%)
10K6.21 mi3.10 mi10008+6178148+3108148+3109472(Top 36%)7844(Top 52%)7844(Top 382%)
15K9.32 mi3.11 mi9880+1288091+578091+579760(Top 37%)8008(Top 53%)8008(Top 390%)
20K12.43 mi3.11 mi9609+2717924+1677924+1678897(Top 33%)7436(Top 49%)7436(Top 362%)
Half13.11 mi0.68 mi9529+807874+507874+508042(Top 30%)6914(Top 46%)6914(Top 337%)
25K15.53 mi2.42 mi9345+1847749+1257749+1258600(Top 32%)7203(Top 47%)7203(Top 351%)
30K18.64 mi3.11 mi8994+3517501+2487501+2487551(Top 28%)6419(Top 42%)6419(Top 313%)
20M20.00 mi1.36 mi8721+2737310+1917310+1915977(Top 22%)5277(Top 35%)5277(Top 257%)
21M21.00 mi1.00 mi8511+2107160+1507160+1505538(Top 21%)4864(Top 32%)4864(Top 237%)
35K21.75 mi0.75 mi8377+1347064+967064+965461(Top 21%)4857(Top 32%)4857(Top 237%)
23M23.00 mi1.25 mi8091+2866863+2016863+2014892(Top 18%)4391(Top 29%)4391(Top 214%)
24M24.00 mi1.00 mi7863+2286697+1666697+1664359(Top 16%)3951(Top 26%)3951(Top 193%)
40K24.85 mi0.85 mi7666+1976559+1386559+1384166(Top 16%)3727(Top 25%)3727(Top 182%)
25.2M25.20 mi0.35 mi7598+686504+556504+554592(Top 17%)4005(Top 26%)4005(Top 195%)
Finish26.22 mi1.02 mi7394+2046345+1596345+1593745(Top 14%)3337(Top 22%)3337(Top 163%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9760

Males

8008

M50-54

8008

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9472

Males

7844

M50-54

7844

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9760

Males

8008

M50-54

8008

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8897

Males

7436

M50-54

7436

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8042

Males

6914

M50-54

6914

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8600

Males

7203

M50-54

7203

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7551

Males

6419

M50-54

6419

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

5977

Males

5277

M50-54

5277

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5538

Males

4864

M50-54

4864

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5461

Males

4857

M50-54

4857

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4892

Males

4391

M50-54

4391

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4359

Males

3951

M50-54

3951

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4166

Males

3727

M50-54

3727

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4592

Males

4005

M50-54

4005

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3745

Males

3337

M50-54

3337

Passing Analysis

Category:
Athletes Passed
3568*
Passed By
337
Net Change
+3231
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10625
5K → 10K706*89+617#10625#10008
10K → 15K251*123+128#10008#9880
15K → 20K311*40+271#9880#9609
20K → Half833+80#9609#9529
Half → 25K21632+184#9529#9345
25K → 30K381*30+351#9345#8994
30K → 20M2752+273#8994#8721
20M → 21M2144+210#8721#8511
21M → 35K1362+134#8511#8377
35K → 23M2871+286#8377#8091
23M → 24M2302+228#8091#7863
24M → 40K1992+197#7863#7666
40K → 25.2M713+68#7666#7598
25.2M → Finish2084+204#7598#7394
TOTALS3568*337+3231

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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