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BOSTON MARATHON 2023

Frederik Søby

Bib: 5219•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 17%
Division (M18-39)
#0 / 5285
Top 37%
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
6:46/mi
21:00
↑ 97↓ 3451.5%
10K· 6.21 mi
6:37/mi
41:34
↑ 79↓ 1380.4%
15K· 9.32 mi
6:39/mi
1:02:13
↑ 67↓ 78
20K· 12.43 mi
6:42/mi
1:23:01
↑ 106↓ 860.1%
Half· 13.11 mi
6:40/mi
1:27:34
↑ 19↓ 370.5%
25K· 15.53 mi
7:09/mi
1:44:54
↑ 66↓ 880.2%
30K· 18.64 mi
6:43/mi
2:05:47
↑ 181↓ 1480.2%
20M
6:44/mi
2:14:56
↑ 64↓ 500.2%
21M
6:47/mi
2:21:43
↑ 106↓ 241.6%
35K· 21.75 mi
6:20/mi
2:26:27
↑ 17↓ 861.7%
23M
6:37/mi
2:34:44
↑ 23↓ 630.6%
24M
6:25/mi
2:41:09
↓ 821.3%
40K· 24.85 mi
6:24/mi
2:46:37
↓ 200.3%
25.2M
6:43/mi
2:48:56
↑ 13↓ 160.2%
Finish· 26.22 mi
5:50/mi
2:54:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:34
Pace6:41 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:19
Pace6:40 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3421:006:4621:00
6:46
-
10K
6.21 mi10:44:0841:346:4120:34
6:37
-0:09
15K
9.32 mi11:04:471:02:136:4120:39
6:39
+0:02
20K
12.43 mi11:25:351:23:016:4120:48
6:42
+0:03
Half
13.11 mi11:30:081:27:346:414:33
6:40
-0:02
25K
15.53 mi11:47:281:44:546:4517:20
7:09
+0:29
30K
18.64 mi12:08:212:05:476:4520:53
6:43
-0:26
20M
20.00 mi12:17:302:14:566:459:09
6:44
+0:01
21M
21.00 mi12:24:172:21:436:456:47
6:47
+0:03
35K
21.75 mi12:29:012:26:276:444:44
6:20
-0:27
23M
23.00 mi12:37:182:34:446:448:17
6:37
+0:17
24M
24.00 mi12:43:432:41:096:436:25
6:25
-0:12
40K
24.85 mi12:49:112:46:376:425:28
6:24
-0:01
25.2M
25.20 mi12:51:302:48:566:422:19
6:43
+0:19
Finish
26.22 mi12:57:272:54:536:405:57
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

6:40 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:34

13% of race

Time at Steady Pace

2:14:59

77% of race

Time at Slower Pace

17:20

10% of race

Average Pace: 6:40 /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 mi10:23:3421:006:4621:00
6:46
#4275
10K
6.21 mi10:44:0841:346:4120:34
6:37
#3881
15K
9.32 mi11:04:471:02:136:4120:39
6:39
#3773
20K
12.43 mi11:25:351:23:016:4120:48
6:42
#3694
Half
13.11 mi11:30:081:27:346:414:33
6:40
#3707
25K
15.53 mi11:47:281:44:546:4517:20
7:09
#4250
30K
18.64 mi12:08:212:05:476:4520:53
6:43
#3834
20M
20.00 mi12:17:302:14:566:459:09
6:44
#3667
21M
21.00 mi12:24:172:21:436:456:47
6:47
#3439
35K
21.75 mi12:29:012:26:276:444:44
6:20
#3324
23M
23.00 mi12:37:182:34:446:448:17
6:37
#3184
24M
24.00 mi12:43:432:41:096:436:25
6:25
#3079
40K
24.85 mi12:49:112:46:376:425:28
6:24
#2941
25.2M
25.20 mi12:51:302:48:566:422:19
6:43
#2873
Finish
26.22 mi12:57:272:54:536:405:57
5:50
#2670
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4275399339933686(Top 14%)3474(Top 23%)3474(Top 66%)
10K6.21 mi3.10 mi3881+3943653+3403653+3403655(Top 14%)3451(Top 23%)3451(Top 65%)
15K9.32 mi3.11 mi3773+1083560+933560+933686(Top 14%)3474(Top 23%)3474(Top 66%)
20K12.43 mi3.11 mi3694+793493+673493+673560(Top 13%)3367(Top 22%)3367(Top 64%)
Half13.11 mi0.68 mi3707-133504-113504-114159(Top 16%)3883(Top 26%)3883(Top 73%)
25K15.53 mi2.42 mi4250-5433984-4803984-4806399(Top 24%)5719(Top 38%)5719(Top 108%)
30K18.64 mi3.11 mi3834+4163616+3683616+3682532(Top 10%)2407(Top 16%)2407(Top 46%)
20M20.00 mi1.36 mi3667+1673463+1533463+1532469(Top 9%)2340(Top 15%)2340(Top 44%)
21M21.00 mi1.00 mi3439+2283257+2063257+2061376(Top 5%)1312(Top 9%)1312(Top 25%)
35K21.75 mi0.75 mi3324+1153149+1083149+1081703(Top 6%)1616(Top 11%)1616(Top 31%)
23M23.00 mi1.25 mi3184+1403020+1293020+1291862(Top 7%)1764(Top 12%)1764(Top 33%)
24M24.00 mi1.00 mi3079+1052919+1012919+1011779(Top 7%)1676(Top 11%)1676(Top 32%)
40K24.85 mi0.85 mi2941+1382791+1282791+1281215(Top 5%)1143(Top 8%)1143(Top 22%)
25.2M25.20 mi0.35 mi2873+682730+612730+61993(Top 4%)940(Top 6%)940(Top 18%)
Finish26.22 mi1.02 mi2670+2032544+1862544+186443(Top 2%)420(Top 3%)420(Top 8%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

3686

Males

3474

M18-39

3474

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

3655

Males

3451

M18-39

3451

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

3686

Males

3474

M18-39

3474

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3560

Males

3367

M18-39

3367

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

4159

Males

3883

M18-39

3883

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6399

Males

5719

M18-39

5719

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2532

Males

2407

M18-39

2407

30K→20M

18.6 - 20.0 mi

Top 9%
×5story building
+64ft-50ft

Overall

2469

Males

2340

M18-39

2340

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1376

Males

1312

M18-39

1312

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1703

Males

1616

M18-39

1616

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1862

Males

1764

M18-39

1764

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

1779

Males

1676

M18-39

1676

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1215

Males

1143

M18-39

1143

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

993

Males

940

M18-39

940

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

443

Males

420

M18-39

420

Passing Analysis

Category:
Athletes Passed
2420
Passed By
815
Net Change
+1605
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4275
5K → 10K47985+394#4275#3881
10K → 15K18072+108#3881#3773
15K → 20K13859+79#3773#3694
20K → Half922-13#3694#3707
Half → 25K13556-543#3707#4250
25K → 30K4193+416#4250#3834
30K → 20M1725+167#3834#3667
20M → 21M2302+228#3667#3439
21M → 35K1150+115#3439#3324
35K → 23M1444+140#3324#3184
23M → 24M1127+105#3184#3079
24M → 40K1380+138#3079#2941
40K → 25.2M680+68#2941#2873
25.2M → Finish2030+203#2873#2670
TOTALS2420815+1605
📊

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