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BOSTON MARATHON 2023

Jeremy Smart

Bib: 5614•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M40-44)
#0 / 2241
Top 30%
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
6:40/mi
20:43
↑ 97↓ 3451.5%
10K· 6.21 mi
6:49/mi
41:54
↑ 79↓ 1380.4%
15K· 9.32 mi
6:54/mi
1:03:21
↑ 67↓ 78
20K· 12.43 mi
6:57/mi
1:24:58
↑ 106↓ 860.1%
Half· 13.11 mi
6:42/mi
1:29:32
↑ 19↓ 370.5%
25K· 15.53 mi
6:58/mi
1:46:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:04/mi
2:08:24
↑ 181↓ 1480.2%
20M
7:00/mi
2:17:55
↑ 64↓ 500.2%
21M
7:32/mi
2:25:27
↑ 106↓ 241.6%
35K· 21.75 mi
6:30/mi
2:30:19
↑ 17↓ 861.7%
23M
6:46/mi
2:38:47
↑ 23↓ 630.6%
24M
6:32/mi
2:45:19
↓ 821.3%
40K· 24.85 mi
6:29/mi
2:50:52
↓ 200.3%
25.2M
7:03/mi
2:53:18
↑ 13↓ 160.2%
Finish· 26.22 mi
6:24/mi
2:59:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:29:32
Pace6:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:30:17
Pace6:53 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4620:436:4020:43
6:40
-
10K
6.21 mi10:44:5741:546:4521:11
6:49
+0:09
15K
9.32 mi11:06:241:03:216:4821:27
6:54
+0:05
20K
12.43 mi11:28:011:24:586:5021:37
6:57
+0:03
Half
13.11 mi11:32:351:29:326:504:34
6:42
-0:15
25K
15.53 mi11:49:291:46:266:5116:54
6:58
+0:16
30K
18.64 mi12:11:272:08:246:5321:58
7:04
+0:06
20M
20.00 mi12:20:582:17:556:549:31
7:00
-0:04
21M
21.00 mi12:28:302:25:276:567:32
7:32
+0:32
35K
21.75 mi12:33:222:30:196:554:52
6:30
-1:02
23M
23.00 mi12:41:502:38:476:548:28
6:46
+0:16
24M
24.00 mi12:48:222:45:196:536:32
6:32
-0:14
40K
24.85 mi12:53:552:50:526:525:33
6:29
-0:03
25.2M
25.20 mi12:56:212:53:186:532:26
7:03
+0:34
Finish
26.22 mi13:02:522:59:496:526:31
6:24
-0:39

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

6:24 /mi

Average Pace

6:52 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:53

82% of race

Time at Steady Pace

31:56

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:23:4620:436:4020:43
6:40
#3385
10K
6.21 mi10:44:5741:546:4521:11
6:49
#4405
15K
9.32 mi11:06:241:03:216:4821:27
6:54
#4970
20K
12.43 mi11:28:011:24:586:5021:37
6:57
#5203
Half
13.11 mi11:32:351:29:326:504:34
6:42
#5153
25K
15.53 mi11:49:291:46:266:5116:54
6:58
#5206
30K
18.64 mi12:11:272:08:246:5321:58
7:04
#5062
20M
20.00 mi12:20:582:17:556:549:31
7:00
#4959
21M
21.00 mi12:28:302:25:276:567:32
7:32
#4923
35K
21.75 mi12:33:222:30:196:554:52
6:30
#4803
23M
23.00 mi12:41:502:38:476:548:28
6:46
#4612
24M
24.00 mi12:48:222:45:196:536:32
6:32
#4474
40K
24.85 mi12:53:552:50:526:525:33
6:29
#4312
25.2M
25.20 mi12:56:212:53:186:532:26
7:03
#4246
Finish
26.22 mi13:02:522:59:496:526:31
6:24
#4139
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3385319231925971(Top 22%)5439(Top 36%)5439(Top 243%)
10K6.21 mi3.10 mi4405-10204124-9324124-9325451(Top 20%)5021(Top 33%)5021(Top 224%)
15K9.32 mi3.11 mi4970-5654614-4904614-4905971(Top 22%)5439(Top 36%)5439(Top 243%)
20K12.43 mi3.11 mi5203-2334823-2094823-2095691(Top 21%)5218(Top 34%)5218(Top 233%)
Half13.11 mi0.68 mi5153+504781+424781+424267(Top 16%)3991(Top 26%)3991(Top 178%)
25K15.53 mi2.42 mi5206-534824-434824-435389(Top 20%)4964(Top 33%)4964(Top 222%)
30K18.64 mi3.11 mi5062+1444694+1304694+1304774(Top 18%)4403(Top 29%)4403(Top 196%)
20M20.00 mi1.36 mi4959+1034600+944600+944040(Top 15%)3740(Top 25%)3740(Top 167%)
21M21.00 mi1.00 mi4923+364566+344566+344730(Top 18%)4271(Top 28%)4271(Top 191%)
35K21.75 mi0.75 mi4803+1204462+1044462+1042480(Top 9%)2352(Top 15%)2352(Top 105%)
23M23.00 mi1.25 mi4612+1914291+1714291+1712471(Top 9%)2323(Top 15%)2323(Top 104%)
24M24.00 mi1.00 mi4474+1384174+1174174+1172258(Top 8%)2116(Top 14%)2116(Top 94%)
40K24.85 mi0.85 mi4312+1624028+1464028+1461529(Top 6%)1443(Top 10%)1443(Top 64%)
25.2M25.20 mi0.35 mi4246+663966+623966+621987(Top 7%)1870(Top 12%)1870(Top 83%)
Finish26.22 mi1.02 mi4139+1073874+923874+922018(Top 8%)1883(Top 12%)1883(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

5971

Males

5439

M40-44

5439

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5451

Males

5021

M40-44

5021

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

5971

Males

5439

M40-44

5439

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

5691

Males

5218

M40-44

5218

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4267

Males

3991

M40-44

3991

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5389

Males

4964

M40-44

4964

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4774

Males

4403

M40-44

4403

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4040

Males

3740

M40-44

3740

20M→21M

20.0 - 21.0 mi

Top 18%
×8story building
+106ft-24ft

Overall

4730

Males

4271

M40-44

4271

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2480

Males

2352

M40-44

2352

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2471

Males

2323

M40-44

2323

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2258

Males

2116

M40-44

2116

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1529

Males

1443

M40-44

1443

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1987

Males

1870

M40-44

1870

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2018

Males

1883

M40-44

1883

Passing Analysis

Category:
Athletes Passed
1427
Passed By
2181
Net Change
-754
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3385
5K → 10K151035-1020#3385#4405
10K → 15K25590-565#4405#4970
15K → 20K52285-233#4970#5203
20K → Half566+50#5203#5153
Half → 25K77130-53#5153#5206
25K → 30K20157+144#5206#5062
30K → 20M13027+103#5062#4959
20M → 21M7236+36#4959#4923
21M → 35K1222+120#4923#4803
35K → 23M1954+191#4803#4612
23M → 24M1391+138#4612#4474
24M → 40K1642+162#4474#4312
40K → 25.2M671+66#4312#4246
25.2M → Finish1125+107#4246#4139
TOTALS14272181-754
📊

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