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BOSTON MARATHON 2023

Jakob Salo Toft

Bib: 27802•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:56
Rank: #24163
Start → 5K
31:56 | 10:17/mi
10K· 6.21 mi
1:04:16
Rank: #24366 (-203)
5K → 10K
32:20 | 10:24/mi
15K· 9.32 mi
1:36:01
Rank: #24221 (+145)
10K → 15K
31:45 | 10:13/mi
20K· 12.43 mi
2:08:17
Rank: #24063 (+158)
15K → 20K
32:16 | 10:23/mi
Half· 13.11 mi
2:15:12
Rank: #24022 (+41)
20K → Half
6:55 | 10:08/mi
25K· 15.53 mi
2:40:32
Rank: #23837 (+185)
Half → 25K
25:20 | 10:27/mi
30K· 18.64 mi
3:13:32
Rank: #23583 (+254)
25K → 30K
33:00 | 10:37/mi
20M
3:28:08
Rank: #23493 (+90)
30K → 20M
14:36 | 10:45/mi
21M
3:38:52
Rank: #23347 (+146)
20M → 21M
10:44 | 10:44/mi
35K· 21.75 mi
3:46:02
Rank: #23230 (+117)
21M → 35K
7:10 | 9:35/mi
23M
3:58:21
Rank: #23050 (+180)
35K → 23M
12:19 | 9:50/mi
24M
4:07:15
Rank: #22854 (+196)
23M → 24M
8:54 | 8:54/mi
40K· 24.85 mi
4:14:53
Rank: #22695 (+159)
24M → 40K
7:38 | 8:56/mi
25.2M
4:18:14
Rank: #22622 (+73)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
4:26:33
Rank: #22430 (+192)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:15:12
Pace10:19 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:11:21
Pace10:01 /mi
📊Negative Split: 2.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1431:5610:1731:56
10:17
-
10K
6.21 mi12:21:341:04:1610:2132:20
10:24
+0:07
15K
9.32 mi12:53:191:36:0110:1831:45
10:13
-0:11
20K
12.43 mi13:25:352:08:1710:1932:16
10:23
+0:10
Half
13.11 mi13:32:302:15:1210:196:55
10:08
-0:15
25K
15.53 mi13:57:502:40:3210:2025:20
10:27
+0:19
30K
18.64 mi14:30:503:13:3210:2333:00
10:37
+0:10
20M
20.00 mi14:45:263:28:0810:2414:36
10:45
+0:08
21M
21.00 mi14:56:103:38:5210:2510:44
10:44
-0:01
35K
21.75 mi15:03:203:46:0210:247:10
9:35
-1:09
23M
23.00 mi15:15:393:58:2110:2212:19
9:50
+0:15
24M
24.00 mi15:24:334:07:1510:188:54
8:54
-0:56
40K
24.85 mi15:32:114:14:5310:157:38
8:56
+0:02
25.2M
25.20 mi15:35:324:18:1410:153:21
9:43
+0:47
Finish
26.22 mi15:43:514:26:3310:108:19
8:10
-1:33

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

8:10 /mi

Average Pace

10:10 /mi

Slowest Pace

10:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

47:41

18% of race

Time at Steady Pace

2:40:32

60% of race

Time at Slower Pace

58:20

22% of race

Average Pace: 10:10 /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 mi11:49:1431:5610:1731:56
10:17
#24163
10K
6.21 mi12:21:341:04:1610:2132:20
10:24
#24366
15K
9.32 mi12:53:191:36:0110:1831:45
10:13
#24221
20K
12.43 mi13:25:352:08:1710:1932:16
10:23
#24063
Half
13.11 mi13:32:302:15:1210:196:55
10:08
#24022
25K
15.53 mi13:57:502:40:3210:2025:20
10:27
#23837
30K
18.64 mi14:30:503:13:3210:2333:00
10:37
#23583
20M
20.00 mi14:45:263:28:0810:2414:36
10:45
#23493
21M
21.00 mi14:56:103:38:5210:2510:44
10:44
#23347
35K
21.75 mi15:03:203:46:0210:247:10
9:35
#23230
23M
23.00 mi15:15:393:58:2110:2212:19
9:50
#23050
24M
24.00 mi15:24:334:07:1510:188:54
8:54
#22854
40K
24.85 mi15:32:114:14:5310:157:38
8:56
#22695
25.2M
25.20 mi15:35:324:18:1410:153:21
9:43
#22622
Finish
26.22 mi15:43:514:26:3310:108:19
8:10
#22430
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi24163141721417223918(Top 90%)14042(Top 93%)14042(Top 624%)
10K6.21 mi3.10 mi24366-20314254-8214254-8224509(Top 92%)14317(Top 94%)14317(Top 636%)
15K9.32 mi3.11 mi24221+14514186+6814186+6823918(Top 90%)14042(Top 93%)14042(Top 624%)
20K12.43 mi3.11 mi24063+15814112+7414112+7423625(Top 89%)13905(Top 92%)13905(Top 617%)
Half13.11 mi0.68 mi24022+4114092+2014092+2023534(Top 88%)13863(Top 91%)13863(Top 616%)
25K15.53 mi2.42 mi23837+18514005+8714005+8723083(Top 87%)13623(Top 90%)13623(Top 605%)
30K18.64 mi3.11 mi23583+25413873+13213873+13222456(Top 84%)13276(Top 87%)13276(Top 590%)
20M20.00 mi1.36 mi23493+9013817+5613817+5622242(Top 84%)13108(Top 86%)13108(Top 582%)
21M21.00 mi1.00 mi23347+14613742+7513742+7520217(Top 76%)12158(Top 80%)12158(Top 540%)
35K21.75 mi0.75 mi23230+11713678+6413678+6420093(Top 75%)12094(Top 80%)12094(Top 537%)
23M23.00 mi1.25 mi23050+18013577+10113577+10119530(Top 73%)11814(Top 78%)11814(Top 525%)
24M24.00 mi1.00 mi22854+19613469+10813469+10816767(Top 63%)10522(Top 69%)10522(Top 467%)
40K24.85 mi0.85 mi22695+15913394+7513394+7515753(Top 59%)10038(Top 66%)10038(Top 446%)
25.2M25.20 mi0.35 mi22622+7313356+3813356+3816166(Top 61%)10210(Top 67%)10210(Top 453%)
Finish26.22 mi1.02 mi22430+19213265+9113265+9113179(Top 50%)8875(Top 58%)8875(Top 394%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

23918

Males

14042

M45-49

14042

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

24509

Males

14317

M45-49

14317

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

23918

Males

14042

M45-49

14042

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

23625

Males

13905

M45-49

13905

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

23534

Males

13863

M45-49

13863

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23083

Males

13623

M45-49

13623

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22456

Males

13276

M45-49

13276

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22242

Males

13108

M45-49

13108

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20217

Males

12158

M45-49

12158

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

20093

Males

12094

M45-49

12094

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19530

Males

11814

M45-49

11814

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16767

Males

10522

M45-49

10522

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15753

Males

10038

M45-49

10038

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16166

Males

10210

M45-49

10210

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13179

Males

8875

M45-49

8875

Passing Analysis

Category:
Athletes Passed
2191
Passed By
458
Net Change
+1733
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24163
5K → 10K110313-203#24163#24366
10K → 15K21570+145#24366#24221
15K → 20K19032+158#24221#24063
20K → Half476+41#24063#24022
Half → 25K19712+185#24022#23837
25K → 30K26410+254#23837#23583
30K → 20M10212+90#23583#23493
20M → 21M1460+146#23493#23347
21M → 35K1181+117#23347#23230
35K → 23M1811+180#23230#23050
23M → 24M1960+196#23050#22854
24M → 40K1590+159#22854#22695
40K → 25.2M730+73#22695#22622
25.2M → Finish1931+192#22622#22430
TOTALS2191458+1733
📊

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