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BOSTON MARATHON 2023

Richard Szeliga

Bib: 914•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Division (M18-39)
#0 / 5285
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:09
Rank: #446
Start → 5K
18:09 | 5:51/mi
10K· 6.21 mi
36:24
Rank: #479 (-33)
5K → 10K
18:15 | 5:52/mi
15K· 9.32 mi
54:44
Rank: #489 (-10)
10K → 15K
18:20 | 5:54/mi
20K· 12.43 mi
1:13:07
Rank: #470 (+19)
15K → 20K
18:23 | 5:55/mi
Half· 13.11 mi
1:17:08
Rank: #471 (-1)
20K → Half
4:01 | 5:53/mi
25K· 15.53 mi
1:31:28
Rank: #457 (+14)
Half → 25K
14:20 | 5:55/mi
30K· 18.64 mi
1:50:37
Rank: #479 (-22)
25K → 30K
19:09 | 6:10/mi
20M
1:59:13
Rank: #483 (-4)
30K → 20M
8:36 | 6:20/mi
21M
2:05:49
Rank: #491 (-8)
20M → 21M
6:36 | 6:36/mi
35K· 21.75 mi
2:10:17
Rank: #492 (-1)
21M → 35K
4:28 | 5:58/mi
23M
2:18:04
Rank: #487 (+5)
35K → 23M
7:47 | 6:13/mi
24M
2:24:18
Rank: #498 (-11)
23M → 24M
6:14 | 6:14/mi
40K· 24.85 mi
2:29:54
Rank: #521 (-23)
24M → 40K
5:36 | 6:33/mi
25.2M
2:32:13
Rank: #520 (+1)
40K → 25.2M
2:19 | 6:43/mi
Finish· 26.22 mi
2:38:10
Rank: #504 (+16)
25.2M → Finish
5:57 | 5:50/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:08
Pace5:53 /mi
2nd Half
Distance13.11 mi
Time1:21:02
Pace6:11 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1518:095:5118:09
5:51
-
10K
6.21 mi10:36:3036:245:5118:15
5:52
+0:01
15K
9.32 mi10:54:5054:445:5218:20
5:54
+0:02
20K
12.43 mi11:13:131:13:075:5318:23
5:55
+0:01
Half
13.11 mi11:17:141:17:085:534:01
5:53
-0:02
25K
15.53 mi11:31:341:31:285:5314:20
5:55
+0:02
30K
18.64 mi11:50:431:50:375:5619:09
6:10
+0:15
20M
20.00 mi11:59:191:59:135:588:36
6:20
+0:10
21M
21.00 mi12:05:552:05:495:596:36
6:36
+0:16
35K
21.75 mi12:10:232:10:175:594:28
5:58
-0:38
23M
23.00 mi12:18:102:18:046:007:47
6:13
+0:15
24M
24.00 mi12:24:242:24:186:016:14
6:14
+0:01
40K
24.85 mi12:30:002:29:546:025:36
6:33
+0:19
25.2M
25.20 mi12:32:192:32:136:022:19
6:43
+0:10
Finish
26.22 mi12:38:162:38:106:025:57
5:50
-0:53

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

5:50 /mi

Average Pace

6:02 /mi

Slowest Pace

6:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:39

91% of race

Time at Steady Pace

14:31

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:02 /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 mi10:18:1518:095:5118:09
5:51
#446
10K
6.21 mi10:36:3036:245:5118:15
5:52
#479
15K
9.32 mi10:54:5054:445:5218:20
5:54
#489
20K
12.43 mi11:13:131:13:075:5318:23
5:55
#470
Half
13.11 mi11:17:141:17:085:534:01
5:53
#471
25K
15.53 mi11:31:341:31:285:5314:20
5:55
#457
30K
18.64 mi11:50:431:50:375:5619:09
6:10
#479
20M
20.00 mi11:59:191:59:135:588:36
6:20
#483
21M
21.00 mi12:05:552:05:495:596:36
6:36
#491
35K
21.75 mi12:10:232:10:175:594:28
5:58
#492
23M
23.00 mi12:18:102:18:046:007:47
6:13
#487
24M
24.00 mi12:24:242:24:186:016:14
6:14
#498
40K
24.85 mi12:30:002:29:546:025:36
6:33
#521
25.2M
25.20 mi12:32:192:32:136:022:19
6:43
#520
Finish
26.22 mi12:38:162:38:106:025:57
5:50
#504
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi446411411515(Top 2%)473(Top 3%)473(Top 9%)
10K6.21 mi3.10 mi479-33443-32443-32547(Top 2%)505(Top 3%)505(Top 10%)
15K9.32 mi3.11 mi489-10450-7450-7515(Top 2%)473(Top 3%)473(Top 9%)
20K12.43 mi3.11 mi470+19434+16434+16439(Top 2%)403(Top 3%)403(Top 8%)
Half13.11 mi0.68 mi471-1433+1433+1521(Top 2%)483(Top 3%)483(Top 9%)
25K15.53 mi2.42 mi457+14421+12421+12410(Top 2%)380(Top 3%)380(Top 7%)
30K18.64 mi3.11 mi479-22441-20441-20608(Top 2%)572(Top 4%)572(Top 11%)
20M20.00 mi1.36 mi483-4446-5446-5921(Top 3%)878(Top 6%)878(Top 17%)
21M21.00 mi1.00 mi491-8453-7453-7854(Top 3%)808(Top 5%)808(Top 15%)
35K21.75 mi0.75 mi492-1455-2455-2612(Top 2%)574(Top 4%)574(Top 11%)
23M23.00 mi1.25 mi487+5450+5450+5630(Top 2%)594(Top 4%)594(Top 11%)
24M24.00 mi1.00 mi498-11461-11461-111099(Top 4%)1040(Top 7%)1040(Top 20%)
40K24.85 mi0.85 mi521-23484-23484-231700(Top 6%)1598(Top 11%)1598(Top 30%)
25.2M25.20 mi0.35 mi520+1483+1483+1899(Top 3%)855(Top 6%)855(Top 16%)
Finish26.22 mi1.02 mi504+16469+14469+14426(Top 2%)405(Top 3%)405(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

515

Males

473

M18-39

473

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

547

Males

505

M18-39

505

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

515

Males

473

M18-39

473

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

439

Males

403

M18-39

403

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

521

Males

483

M18-39

483

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

410

Males

380

M18-39

380

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

608

Males

572

M18-39

572

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

921

Males

878

M18-39

878

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

854

Males

808

M18-39

808

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

612

Males

574

M18-39

574

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

630

Males

594

M18-39

594

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1099

Males

1040

M18-39

1040

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1700

Males

1598

M18-39

1598

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

899

Males

855

M18-39

855

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

426

Males

405

M18-39

405

Passing Analysis

Category:
Athletes Passed
151
Passed By
209
Net Change
-58
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#446
5K → 10K1043-33#446#479
10K → 15K1323-10#479#489
15K → 20K278+19#489#470
20K → Half34-1#470#471
Half → 25K195+14#471#457
25K → 30K1638-22#457#479
30K → 20M812-4#479#483
20M → 21M513-8#483#491
21M → 35K56-1#491#492
35K → 23M138+5#492#487
23M → 24M415-11#487#498
24M → 40K427-23#498#521
40K → 25.2M32+1#521#520
25.2M → Finish215+16#520#504
TOTALS151209-58
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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