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BOSTON MARATHON 2023

John Perry

Bib: 27848•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
9:13/mi
28:39
↑ 97↓ 3451.5%
10K· 6.21 mi
8:55/mi
56:22
↑ 79↓ 1380.4%
15K· 9.32 mi
9:03/mi
1:24:28
↑ 67↓ 78
20K· 12.43 mi
9:04/mi
1:52:39
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
1:58:50
↑ 19↓ 370.5%
25K· 15.53 mi
9:02/mi
2:20:43
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:49:11
↑ 181↓ 1480.2%
20M
9:10/mi
3:01:38
↑ 64↓ 500.2%
21M
9:33/mi
3:11:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:17:49
↑ 17↓ 861.7%
23M
9:02/mi
3:29:08
↑ 23↓ 630.6%
24M
8:43/mi
3:37:51
↓ 821.3%
40K· 24.85 mi
9:02/mi
3:45:34
↓ 200.3%
25.2M
9:25/mi
3:48:49
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:57:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:58:50
Pace9:04 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:58:21
Pace9:02 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4528:399:1328:39
9:13
-
10K
6.21 mi12:13:2856:229:0427:43
8:55
-0:18
15K
9.32 mi12:41:341:24:289:0428:06
9:03
+0:08
20K
12.43 mi13:09:451:52:399:0428:11
9:04
+0:01
Half
13.11 mi13:15:561:58:509:046:11
9:04
0:00
25K
15.53 mi13:37:492:20:439:0421:53
9:02
-0:02
30K
18.64 mi14:06:172:49:119:0528:28
9:10
+0:08
20M
20.00 mi14:18:443:01:389:0512:27
9:10
0:00
21M
21.00 mi14:28:173:11:119:069:33
9:33
+0:23
35K
21.75 mi14:34:553:17:499:066:38
8:52
-0:41
23M
23.00 mi14:46:143:29:089:0611:19
9:02
+0:10
24M
24.00 mi14:54:573:37:519:058:43
8:43
-0:19
40K
24.85 mi15:02:403:45:349:057:43
9:02
+0:19
25.2M
25.20 mi15:05:553:48:499:053:15
9:25
+0:23
Finish
26.22 mi15:14:173:57:119:038:22
8:13
-1:12

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

8:13 /mi

Average Pace

9:03 /mi

Slowest Pace

9:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:21

39% of race

Time at Steady Pace

2:24:50

61% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:45:4528:399:1328:39
9:13
#21270
10K
6.21 mi12:13:2856:229:0427:43
8:55
#20936
15K
9.32 mi12:41:341:24:289:0428:06
9:03
#20850
20K
12.43 mi13:09:451:52:399:0428:11
9:04
#20633
Half
13.11 mi13:15:561:58:509:046:11
9:04
#20627
25K
15.53 mi13:37:492:20:439:0421:53
9:02
#20391
30K
18.64 mi14:06:172:49:119:0528:28
9:10
#19945
20M
20.00 mi14:18:443:01:389:0512:27
9:10
#19731
21M
21.00 mi14:28:173:11:119:069:33
9:33
#19528
35K
21.75 mi14:34:553:17:499:066:38
8:52
#19442
23M
23.00 mi14:46:143:29:089:0611:19
9:02
#19263
24M
24.00 mi14:54:573:37:519:058:43
8:43
#19116
40K
24.85 mi15:02:403:45:349:057:43
9:02
#19020
25.2M
25.20 mi15:05:553:48:499:053:15
9:25
#18965
Finish
26.22 mi15:14:173:57:119:038:22
8:13
#18800
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21270127381273820696(Top 78%)12605(Top 83%)12605(Top 239%)
10K6.21 mi3.10 mi20936+33412630+10812630+10820516(Top 77%)12506(Top 82%)12506(Top 237%)
15K9.32 mi3.11 mi20850+8612624+612624+620696(Top 78%)12605(Top 83%)12605(Top 239%)
20K12.43 mi3.11 mi20633+21712540+8412540+8420003(Top 75%)12300(Top 81%)12300(Top 233%)
Half13.11 mi0.68 mi20627+612545-512545-520652(Top 78%)12572(Top 83%)12572(Top 238%)
25K15.53 mi2.42 mi20391+23612441+10412441+10419078(Top 72%)11882(Top 78%)11882(Top 225%)
30K18.64 mi3.11 mi19945+44612223+21812223+21817988(Top 68%)11327(Top 75%)11327(Top 214%)
20M20.00 mi1.36 mi19731+21412134+8912134+8917364(Top 65%)10979(Top 72%)10979(Top 208%)
21M21.00 mi1.00 mi19528+20312031+10312031+10316203(Top 61%)10452(Top 69%)10452(Top 198%)
35K21.75 mi0.75 mi19442+8611992+3911992+3917272(Top 65%)10829(Top 71%)10829(Top 205%)
23M23.00 mi1.25 mi19263+17911913+7911913+7916233(Top 61%)10350(Top 68%)10350(Top 196%)
24M24.00 mi1.00 mi19116+14711833+8011833+8015742(Top 59%)10065(Top 66%)10065(Top 190%)
40K24.85 mi0.85 mi19020+9611788+4511788+4516270(Top 61%)10251(Top 68%)10251(Top 194%)
25.2M25.20 mi0.35 mi18965+5511758+3011758+3014812(Top 56%)9616(Top 63%)9616(Top 182%)
Finish26.22 mi1.02 mi18800+16511675+8311675+8313494(Top 51%)9026(Top 59%)9026(Top 171%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20696

Males

12605

M18-39

12605

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20516

Males

12506

M18-39

12506

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20696

Males

12605

M18-39

12605

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

20003

Males

12300

M18-39

12300

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20652

Males

12572

M18-39

12572

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19078

Males

11882

M18-39

11882

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

17988

Males

11327

M18-39

11327

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17364

Males

10979

M18-39

10979

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

16203

Males

10452

M18-39

10452

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17272

Males

10829

M18-39

10829

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16233

Males

10350

M18-39

10350

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15742

Males

10065

M18-39

10065

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16270

Males

10251

M18-39

10251

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14812

Males

9616

M18-39

9616

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13494

Males

9026

M18-39

9026

Passing Analysis

Category:
Athletes Passed
2893
Passed By
423
Net Change
+2470
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21270
5K → 10K467133+334#21270#20936
10K → 15K225139+86#20936#20850
15K → 20K28467+217#20850#20633
20K → Half2721+6#20633#20627
Half → 25K25418+236#20627#20391
25K → 30K4537+446#20391#19945
30K → 20M2151+214#19945#19731
20M → 21M2085+203#19731#19528
21M → 35K959+86#19528#19442
35K → 23M1856+179#19442#19263
23M → 24M1547+147#19263#19116
24M → 40K1026+96#19116#19020
40K → 25.2M583+55#19020#18965
25.2M → Finish1661+165#18965#18800
TOTALS2893423+2470
📊

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