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BOSTON MARATHON 2023

John Smay

Bib: 5099•M

WI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 48%
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
6:50/mi
21:14
↑ 97↓ 3451.5%
10K· 6.21 mi
6:53/mi
42:37
↑ 79↓ 1380.4%
15K· 9.32 mi
6:45/mi
1:03:35
↑ 67↓ 78
20K· 12.43 mi
6:48/mi
1:24:43
↑ 106↓ 860.1%
Half· 13.11 mi
6:45/mi
1:29:19
↑ 19↓ 370.5%
25K· 15.53 mi
6:48/mi
1:45:49
↑ 66↓ 880.2%
30K· 18.64 mi
6:53/mi
2:07:12
↑ 181↓ 1480.2%
20M
6:56/mi
2:16:37
↑ 64↓ 500.2%
21M
7:09/mi
2:23:46
↑ 106↓ 241.6%
35K· 21.75 mi
6:46/mi
2:28:50
↑ 17↓ 861.7%
23M
6:54/mi
2:37:28
↑ 23↓ 630.6%
24M
6:38/mi
2:44:06
↓ 821.3%
40K· 24.85 mi
6:46/mi
2:49:53
↓ 200.3%
25.2M
7:12/mi
2:52:22
↑ 13↓ 160.2%
Finish· 26.22 mi
6:28/mi
2:58:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:19
Pace6:49 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:38
Pace6:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:0321:146:5021:14
6:50
-
10K
6.21 mi10:45:2642:376:5221:23
6:53
+0:03
15K
9.32 mi11:06:241:03:356:4920:58
6:45
-0:08
20K
12.43 mi11:27:321:24:436:4921:08
6:48
+0:03
Half
13.11 mi11:32:081:29:196:494:36
6:45
-0:03
25K
15.53 mi11:48:381:45:496:4916:30
6:48
+0:03
30K
18.64 mi12:10:012:07:126:4921:23
6:53
+0:05
20M
20.00 mi12:19:262:16:376:509:25
6:56
+0:03
21M
21.00 mi12:26:352:23:466:517:09
7:09
+0:13
35K
21.75 mi12:31:392:28:506:515:04
6:46
-0:23
23M
23.00 mi12:40:172:37:286:518:38
6:54
+0:08
24M
24.00 mi12:46:552:44:066:506:38
6:38
-0:16
40K
24.85 mi12:52:422:49:536:505:47
6:46
+0:08
25.2M
25.20 mi12:55:112:52:226:502:29
7:12
+0:26
Finish
26.22 mi13:01:462:58:576:506:35
6:28
-0:44

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

6:28 /mi

Average Pace

6:50 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:19

95% of race

Time at Steady Pace

9:38

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:24:0321:146:5021:14
6:50
#4985
10K
6.21 mi10:45:2642:376:5221:23
6:53
#5477
15K
9.32 mi11:06:241:03:356:4920:58
6:45
#5189
20K
12.43 mi11:27:321:24:436:4921:08
6:48
#4991
Half
13.11 mi11:32:081:29:196:494:36
6:45
#4972
25K
15.53 mi11:48:381:45:496:4916:30
6:48
#4809
30K
18.64 mi12:10:012:07:126:4921:23
6:53
#4517
20M
20.00 mi12:19:262:16:376:509:25
6:56
#4429
21M
21.00 mi12:26:352:23:466:517:09
7:09
#4269
35K
21.75 mi12:31:392:28:506:515:04
6:46
#4246
23M
23.00 mi12:40:172:37:286:518:38
6:54
#4166
24M
24.00 mi12:46:552:44:066:506:38
6:38
#4067
40K
24.85 mi12:52:422:49:536:505:47
6:46
#3985
25.2M
25.20 mi12:55:112:52:226:502:29
7:12
#3939
Finish
26.22 mi13:01:462:58:576:506:35
6:28
#3845
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4985462746274578(Top 17%)4274(Top 28%)4274(Top 81%)
10K6.21 mi3.10 mi5477-4925053-4265053-4265986(Top 22%)5449(Top 36%)5449(Top 103%)
15K9.32 mi3.11 mi5189+2884808+2454808+2454578(Top 17%)4274(Top 28%)4274(Top 81%)
20K12.43 mi3.11 mi4991+1984639+1694639+1694441(Top 17%)4142(Top 27%)4142(Top 78%)
Half13.11 mi0.68 mi4972+194624+154624+154681(Top 18%)4343(Top 29%)4343(Top 82%)
25K15.53 mi2.42 mi4809+1634475+1494475+1494187(Top 16%)3918(Top 26%)3918(Top 74%)
30K18.64 mi3.11 mi4517+2924218+2574218+2573544(Top 13%)3328(Top 22%)3328(Top 63%)
20M20.00 mi1.36 mi4429+884135+834135+833600(Top 14%)3359(Top 22%)3359(Top 64%)
21M21.00 mi1.00 mi4269+1603992+1433992+1432856(Top 11%)2681(Top 18%)2681(Top 51%)
35K21.75 mi0.75 mi4246+233973+193973+193997(Top 15%)3672(Top 24%)3672(Top 69%)
23M23.00 mi1.25 mi4166+803901+723901+723206(Top 12%)2983(Top 20%)2983(Top 56%)
24M24.00 mi1.00 mi4067+993808+933808+932773(Top 10%)2582(Top 17%)2582(Top 49%)
40K24.85 mi0.85 mi3985+823731+773731+772670(Top 10%)2469(Top 16%)2469(Top 47%)
25.2M25.20 mi0.35 mi3939+463688+433688+432561(Top 10%)2374(Top 16%)2374(Top 45%)
Finish26.22 mi1.02 mi3845+943610+783610+782310(Top 9%)2138(Top 14%)2138(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4578

Males

4274

M18-39

4274

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

5986

Males

5449

M18-39

5449

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4578

Males

4274

M18-39

4274

15K→20K

9.3 - 12.4 mi

Top 17%
×5story building
+106ft-86ft

Overall

4441

Males

4142

M18-39

4142

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

4681

Males

4343

M18-39

4343

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4187

Males

3918

M18-39

3918

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3544

Males

3328

M18-39

3328

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

3600

Males

3359

M18-39

3359

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2856

Males

2681

M18-39

2681

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

3997

Males

3672

M18-39

3672

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3206

Males

2983

M18-39

2983

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2773

Males

2582

M18-39

2582

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2670

Males

2469

M18-39

2469

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2561

Males

2374

M18-39

2374

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2310

Males

2138

M18-39

2138

Passing Analysis

Category:
Athletes Passed
1920
Passed By
780
Net Change
+1140
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4985
5K → 10K60552-492#4985#5477
10K → 15K31224+288#5477#5189
15K → 20K22426+198#5189#4991
20K → Half3112+19#4991#4972
Half → 25K18623+163#4972#4809
25K → 30K31927+292#4809#4517
30K → 20M10820+88#4517#4429
20M → 21M1677+160#4429#4269
21M → 35K4724+23#4269#4246
35K → 23M10020+80#4246#4166
23M → 24M11112+99#4166#4067
24M → 40K9715+82#4067#3985
40K → 25.2M493+46#3985#3939
25.2M → Finish10915+94#3939#3845
TOTALS1920780+1140
📊

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