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BOSTON MARATHON 2023

Craig Swanson

Bib: 30597•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 42%
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
8:15/mi
25:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
50:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:13:21
↑ 67↓ 78
20K· 12.43 mi
7:47/mi
1:37:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:42:41
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
2:01:35
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:26:08
↑ 181↓ 1480.2%
20M
7:57/mi
2:36:56
↑ 64↓ 500.2%
21M
8:25/mi
2:45:21
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:51:11
↑ 17↓ 861.7%
23M
7:58/mi
3:01:10
↑ 23↓ 630.6%
24M
7:49/mi
3:08:59
↓ 821.3%
40K· 24.85 mi
8:02/mi
3:15:51
↓ 200.3%
25.2M
8:30/mi
3:18:47
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:26:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:41
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:44:01
Pace7:56 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2425:398:1525:39
8:15
-
10K
6.21 mi12:08:4850:038:0324:24
7:51
-0:24
15K
9.32 mi12:32:061:13:217:5223:18
7:30
-0:21
20K
12.43 mi12:56:171:37:327:5124:11
7:47
+0:17
Half
13.11 mi13:01:261:42:417:505:09
7:33
-0:14
25K
15.53 mi13:20:202:01:357:5018:54
7:48
+0:15
30K
18.64 mi13:44:532:26:087:5024:33
7:54
+0:06
20M
20.00 mi13:55:412:36:567:5110:48
7:57
+0:03
21M
21.00 mi14:04:062:45:217:528:25
8:25
+0:28
35K
21.75 mi14:09:562:51:117:525:50
7:48
-0:37
23M
23.00 mi14:19:553:01:107:539:59
7:58
+0:10
24M
24.00 mi14:27:443:08:597:527:49
7:49
-0:09
40K
24.85 mi14:34:363:15:517:536:52
8:02
+0:13
25.2M
25.20 mi14:37:323:18:477:532:56
8:30
+0:28
Finish
26.22 mi14:45:273:26:427:537:55
7:46
-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

7:30 /mi

Average Pace

7:53 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:42

82% of race

Time at Steady Pace

37:00

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:53 /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 mi11:44:2425:398:1525:39
8:15
#15835
10K
6.21 mi12:08:4850:038:0324:24
7:51
#14766
15K
9.32 mi12:32:061:13:217:5223:18
7:30
#13320
20K
12.43 mi12:56:171:37:327:5124:11
7:47
#12824
Half
13.11 mi13:01:261:42:417:505:09
7:33
#12696
25K
15.53 mi13:20:202:01:357:5018:54
7:48
#12413
30K
18.64 mi13:44:532:26:087:5024:33
7:54
#11927
20M
20.00 mi13:55:412:36:567:5110:48
7:57
#11764
21M
21.00 mi14:04:062:45:217:528:25
8:25
#11639
35K
21.75 mi14:09:562:51:117:525:50
7:48
#11595
23M
23.00 mi14:19:553:01:107:539:59
7:58
#11451
24M
24.00 mi14:27:443:08:597:527:49
7:49
#11358
40K
24.85 mi14:34:363:15:517:536:52
8:02
#11291
25.2M
25.20 mi14:37:323:18:477:532:56
8:30
#11254
Finish
26.22 mi14:45:273:26:427:537:55
7:46
#11194
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi15835106381063810166(Top 38%)8235(Top 54%)8235(Top 156%)
10K6.21 mi3.10 mi14766+106910239+39910239+39913575(Top 51%)9776(Top 64%)9776(Top 185%)
15K9.32 mi3.11 mi13320+14469658+5819658+58110166(Top 38%)8235(Top 54%)8235(Top 156%)
20K12.43 mi3.11 mi12824+4969430+2289430+22811587(Top 44%)8838(Top 58%)8838(Top 167%)
Half13.11 mi0.68 mi12696+1289365+659365+6510583(Top 40%)8405(Top 55%)8405(Top 159%)
25K15.53 mi2.42 mi12413+2839224+1419224+14111049(Top 42%)8529(Top 56%)8529(Top 161%)
30K18.64 mi3.11 mi11927+4868970+2548970+25410157(Top 38%)7912(Top 52%)7912(Top 150%)
20M20.00 mi1.36 mi11764+1638886+848886+849887(Top 37%)7698(Top 51%)7698(Top 146%)
21M21.00 mi1.00 mi11639+1258810+768810+769957(Top 37%)7586(Top 50%)7586(Top 144%)
35K21.75 mi0.75 mi11595+448778+328778+3210612(Top 40%)7927(Top 52%)7927(Top 150%)
23M23.00 mi1.25 mi11451+1448691+878691+879568(Top 36%)7272(Top 48%)7272(Top 138%)
24M24.00 mi1.00 mi11358+938630+618630+619905(Top 37%)7351(Top 48%)7351(Top 139%)
40K24.85 mi0.85 mi11291+678573+578573+5710239(Top 38%)7460(Top 49%)7460(Top 141%)
25.2M25.20 mi0.35 mi11254+378542+318542+319529(Top 36%)7055(Top 46%)7055(Top 133%)
Finish26.22 mi1.02 mi11194+608494+488494+4810436(Top 39%)7520(Top 50%)7520(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10166

Males

8235

M18-39

8235

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13575

Males

9776

M18-39

9776

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10166

Males

8235

M18-39

8235

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11587

Males

8838

M18-39

8838

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10583

Males

8405

M18-39

8405

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11049

Males

8529

M18-39

8529

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10157

Males

7912

M18-39

7912

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9887

Males

7698

M18-39

7698

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9957

Males

7586

M18-39

7586

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10612

Males

7927

M18-39

7927

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9568

Males

7272

M18-39

7272

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9905

Males

7351

M18-39

7351

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10239

Males

7460

M18-39

7460

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9529

Males

7055

M18-39

7055

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10436

Males

7520

M18-39

7520

Passing Analysis

Category:
Athletes Passed
4980
Passed By
339
Net Change
+4641
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15835
5K → 10K111546+1069#15835#14766
10K → 15K14504+1446#14766#13320
15K → 20K51216+496#13320#12824
20K → Half1335+128#12824#12696
Half → 25K30421+283#12696#12413
25K → 30K51327+486#12413#11927
30K → 20M18623+163#11927#11764
20M → 21M15429+125#11764#11639
21M → 35K7430+44#11639#11595
35K → 23M17834+144#11595#11451
23M → 24M11017+93#11451#11358
24M → 40K9831+67#11358#11291
40K → 25.2M4811+37#11291#11254
25.2M → Finish10545+60#11254#11194
TOTALS4980339+4641
📊

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