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BOSTON MARATHON 2023

Ryan Siewert

Bib: 3819•M

MN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 4%
Division (M18-39)
#0 / 5285
Top 9%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:27
Rank: #1287
Start → 5K
6:16/mi
19:27 split
10K· 6.21 mi
38:12
Rank: #1067 (+220)
5K → 10K
6:02/mi
18:45 split
15K· 9.32 mi
57:06
Rank: #1025 (+42)
10K → 15K
6:05/mi
18:54 split
20K· 12.43 mi
1:15:56
Rank: #934 (+91)
15K → 20K
6:04/mi
18:50 split
Half· 13.11 mi
1:20:02
Rank: #929 (+5)
20K → Half
6:01/mi
4:06 split
25K· 15.53 mi
1:34:52
Rank: #890 (+39)
Half → 25K
6:07/mi
14:50 split
30K· 18.64 mi
1:54:02
Rank: #813 (+77)
25K → 30K
6:10/mi
19:10 split
20M
2:02:18
Rank: #779 (+34)
30K → 20M
6:05/mi
8:16 split
21M
2:08:41
Rank: #753 (+26)
20M → 21M
6:23/mi
6:23 split
35K· 21.75 mi
2:13:00
Rank: #721 (+32)
21M → 35K
5:46/mi
4:19 split
23M
2:20:35
Rank: #689 (+32)
35K → 23M
6:03/mi
7:35 split
24M
2:26:25
Rank: #661 (+28)
23M → 24M
5:50/mi
5:50 split
40K· 24.85 mi
2:31:38
Rank: #645 (+16)
24M → 40K
6:06/mi
5:13 split
25.2M
2:33:51
Rank: #635 (+10)
40K → 25.2M
6:26/mi
2:13 split
Finish· 26.22 mi
2:39:45
Rank: #615 (+20)
25.2M → Finish
5:47/mi
5:54 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:20:02
Pace6:06 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:19:43
Pace6:05 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4019:276:1619:27
6:16
-
10K
6.21 mi10:39:2538:126:0918:45
6:02
-0:14
15K
9.32 mi10:58:1957:066:0818:54
6:05
+0:03
20K
12.43 mi11:17:091:15:566:0718:50
6:04
-0:01
Half
13.11 mi11:21:151:20:026:064:06
6:01
-0:03
25K
15.53 mi11:36:051:34:526:0614:50
6:07
+0:06
30K
18.64 mi11:55:151:54:026:0719:10
6:10
+0:03
20M
20.00 mi12:03:312:02:186:078:16
6:05
-0:05
21M
21.00 mi12:09:542:08:416:086:23
6:23
+0:18
35K
21.75 mi12:14:132:13:006:074:19
5:46
-0:37
23M
23.00 mi12:21:482:20:356:077:35
6:03
+0:17
24M
24.00 mi12:27:382:26:256:065:50
5:50
-0:13
40K
24.85 mi12:32:512:31:386:065:13
6:06
+0:16
25.2M
25.20 mi12:35:042:33:516:062:13
6:26
+0:20
Finish
26.22 mi12:40:582:39:456:065:54
5:47
-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

5:46 /mi

Average Pace

6:06 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:09

95% of race

Time at Steady Pace

8:36

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:06 /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 mi10:20:4019:276:1619:27
6:16
#1287
10K
6.21 mi10:39:2538:126:0918:45
6:02
#1067
15K
9.32 mi10:58:1957:066:0818:54
6:05
#1025
20K
12.43 mi11:17:091:15:566:0718:50
6:04
#934
Half
13.11 mi11:21:151:20:026:064:06
6:01
#929
25K
15.53 mi11:36:051:34:526:0614:50
6:07
#890
30K
18.64 mi11:55:151:54:026:0719:10
6:10
#813
20M
20.00 mi12:03:312:02:186:078:16
6:05
#779
21M
21.00 mi12:09:542:08:416:086:23
6:23
#753
35K
21.75 mi12:14:132:13:006:074:19
5:46
#721
23M
23.00 mi12:21:482:20:356:077:35
6:03
#689
24M
24.00 mi12:27:382:26:256:065:50
5:50
#661
40K
24.85 mi12:32:512:31:386:065:13
6:06
#645
25.2M
25.20 mi12:35:042:33:516:062:13
6:26
#635
Finish
26.22 mi12:40:582:39:456:065:54
5:47
#615
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi128712211221915(Top 3%)867(Top 6%)867(Top 16%)
10K6.21 mi3.10 mi1067+2201010+2111010+211893(Top 3%)844(Top 6%)844(Top 16%)
15K9.32 mi3.11 mi1025+42972+38972+38915(Top 3%)867(Top 6%)867(Top 16%)
20K12.43 mi3.11 mi934+91885+87885+87686(Top 3%)644(Top 4%)644(Top 12%)
Half13.11 mi0.68 mi929+5880+5880+5766(Top 3%)725(Top 5%)725(Top 14%)
25K15.53 mi2.42 mi890+39842+38842+38783(Top 3%)741(Top 5%)741(Top 14%)
30K18.64 mi3.11 mi813+77770+72770+72621(Top 2%)585(Top 4%)585(Top 11%)
20M20.00 mi1.36 mi779+34737+33737+33461(Top 2%)427(Top 3%)427(Top 8%)
21M21.00 mi1.00 mi753+26711+26711+26462(Top 2%)429(Top 3%)429(Top 8%)
35K21.75 mi0.75 mi721+32679+32679+32327(Top 1%)301(Top 2%)301(Top 6%)
23M23.00 mi1.25 mi689+32647+32647+32387(Top 1%)361(Top 2%)361(Top 7%)
24M24.00 mi1.00 mi661+28620+27620+27302(Top 1%)276(Top 2%)276(Top 5%)
40K24.85 mi0.85 mi645+16604+16604+16484(Top 2%)455(Top 3%)455(Top 9%)
25.2M25.20 mi0.35 mi635+10595+9595+9396(Top 1%)374(Top 2%)374(Top 7%)
Finish26.22 mi1.02 mi615+20575+20575+20350(Top 1%)332(Top 2%)332(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

915

Males

867

M18-39

867

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

893

Males

844

M18-39

844

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

915

Males

867

M18-39

867

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

686

Males

644

M18-39

644

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

766

Males

725

M18-39

725

Half→25K

13.1 - 15.5 mi

Top 3%
×4story building
+66ft-88ft

Overall

783

Males

741

M18-39

741

25K→30K

15.5 - 18.6 mi

Top 2%
×9story building
+181ft-148ft

Overall

621

Males

585

M18-39

585

30K→20M

18.6 - 20.0 mi

Top 2%
×5story building
+64ft-50ft

Overall

461

Males

427

M18-39

427

20M→21M

20.0 - 21.0 mi

Top 2%
×8story building
+106ft-24ft

Overall

462

Males

429

M18-39

429

21M→35K

21.0 - 21.8 mi

Top 1%
×7story building
+17ft-86ft

Overall

327

Males

301

M18-39

301

35K→23M

21.8 - 23.0 mi

Top 1%
×5story building
+23ft-63ft

Overall

387

Males

361

M18-39

361

23M→24M

23.0 - 24.0 mi

Top 1%
×6story building
+12ft-82ft

Overall

302

Males

276

M18-39

276

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

484

Males

455

M18-39

455

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

396

Males

374

M18-39

374

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2story building
+22ft-21ft

Overall

350

Males

332

M18-39

332

Passing Analysis

Category:
Athletes Passed
715
Passed By
43
Net Change
+672
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1287
5K → 10K2255+220#1287#1067
10K → 15K5614+42#1067#1025
15K → 20K943+91#1025#934
20K → Half72+5#934#929
Half → 25K467+39#929#890
25K → 30K781+77#890#813
30K → 20M340+34#813#779
20M → 21M282+26#779#753
21M → 35K331+32#753#721
35K → 23M331+32#721#689
23M → 24M291+28#689#661
24M → 40K193+16#661#645
40K → 25.2M111+10#645#635
25.2M → Finish222+20#635#615
TOTALS71543+672
📊

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