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BOSTON MARATHON 2023

Alexander Krasuski

Bib: 1867•M

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:55
Rank: #876
Start → 5K
18:55 | 6:05/mi
10K· 6.21 mi
37:20
Rank: #753 (+123)
5K → 10K
18:25 | 5:56/mi
15K· 9.32 mi
55:53
Rank: #710 (+43)
10K → 15K
18:33 | 5:58/mi
20K· 12.43 mi
1:14:59
Rank: #740 (-30)
15K → 20K
19:06 | 6:09/mi
Half· 13.11 mi
1:19:08
Rank: #748 (-8)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:34:37
Rank: #844 (-96)
Half → 25K
15:29 | 6:23/mi
30K· 18.64 mi
1:55:44
Rank: #1051 (-207)
25K → 30K
21:07 | 6:48/mi
20M
2:04:59
Rank: #1118 (-67)
30K → 20M
9:15 | 6:48/mi
21M
2:12:22
Rank: #1203 (-85)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:17:41
Rank: #1315 (-112)
21M → 35K
5:19 | 7:06/mi
23M
2:27:08
Rank: #1510 (-195)
35K → 23M
9:27 | 7:33/mi
24M
2:34:35
Rank: #1674 (-164)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
2:41:07
Rank: #1823 (-149)
24M → 40K
6:32 | 7:38/mi
25.2M
2:43:40
Rank: #1832 (-9)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:50:28
Rank: #1853 (-21)
25.2M → Finish
6:48 | 6:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:08
Pace6:02 /mi
2nd Half
Distance13.11 mi
Time1:31:20
Pace6:58 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:3318:556:0518:55
6:05
-
10K
6.21 mi10:37:5837:206:0018:25
5:56
-0:09
15K
9.32 mi10:56:3155:536:0018:33
5:58
+0:02
20K
12.43 mi11:15:371:14:596:0219:06
6:09
+0:11
Half
13.11 mi11:19:461:19:086:024:09
6:05
-0:04
25K
15.53 mi11:35:151:34:376:0515:29
6:23
+0:18
30K
18.64 mi11:56:221:55:446:1321:07
6:48
+0:25
20M
20.00 mi12:05:372:04:596:159:15
6:48
0:00
21M
21.00 mi12:13:002:12:226:187:23
7:23
+0:35
35K
21.75 mi12:18:192:17:416:205:19
7:06
-0:17
23M
23.00 mi12:27:462:27:086:249:27
7:33
+0:27
24M
24.00 mi12:35:132:34:356:267:27
7:27
-0:06
40K
24.85 mi12:41:452:41:076:296:32
7:38
+0:11
25.2M
25.20 mi12:44:182:43:406:302:33
7:24
-0:14
Finish
26.22 mi12:51:062:50:286:306:48
6:40
-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

5:56 /mi

Average Pace

6:30 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:37

56% of race

Time at Steady Pace

42:29

25% of race

Time at Slower Pace

33:22

20% of race

Average Pace: 6:30 /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 mi10:19:3318:556:0518:55
6:05
#876
10K
6.21 mi10:37:5837:206:0018:25
5:56
#753
15K
9.32 mi10:56:3155:536:0018:33
5:58
#710
20K
12.43 mi11:15:371:14:596:0219:06
6:09
#740
Half
13.11 mi11:19:461:19:086:024:09
6:05
#748
25K
15.53 mi11:35:151:34:376:0515:29
6:23
#844
30K
18.64 mi11:56:221:55:446:1321:07
6:48
#1051
20M
20.00 mi12:05:372:04:596:159:15
6:48
#1118
21M
21.00 mi12:13:002:12:226:187:23
7:23
#1203
35K
21.75 mi12:18:192:17:416:205:19
7:06
#1315
23M
23.00 mi12:27:462:27:086:249:27
7:33
#1510
24M
24.00 mi12:35:132:34:356:267:27
7:27
#1674
40K
24.85 mi12:41:452:41:076:296:32
7:38
#1823
25.2M
25.20 mi12:44:182:43:406:302:33
7:24
#1832
Finish
26.22 mi12:51:062:50:286:306:48
6:40
#1853
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi876823823653(Top 2%)610(Top 4%)610(Top 12%)
10K6.21 mi3.10 mi753+123709+114709+114641(Top 2%)598(Top 4%)598(Top 11%)
15K9.32 mi3.11 mi710+43666+43666+43653(Top 2%)610(Top 4%)610(Top 12%)
20K12.43 mi3.11 mi740-30697-31697-31906(Top 3%)861(Top 6%)861(Top 16%)
Half13.11 mi0.68 mi748-8705-8705-8990(Top 4%)944(Top 6%)944(Top 18%)
25K15.53 mi2.42 mi844-96797-92797-921670(Top 6%)1600(Top 11%)1600(Top 30%)
30K18.64 mi3.11 mi1051-2071001-2041001-2042946(Top 11%)2788(Top 18%)2788(Top 53%)
20M20.00 mi1.36 mi1118-671065-641065-642826(Top 11%)2661(Top 18%)2661(Top 50%)
21M21.00 mi1.00 mi1203-851149-841149-844020(Top 15%)3698(Top 24%)3698(Top 70%)
35K21.75 mi0.75 mi1315-1121255-1061255-1065882(Top 22%)5135(Top 34%)5135(Top 97%)
23M23.00 mi1.25 mi1510-1951442-1871442-1876674(Top 25%)5605(Top 37%)5605(Top 106%)
24M24.00 mi1.00 mi1674-1641601-1591601-1597318(Top 27%)5888(Top 39%)5888(Top 111%)
40K24.85 mi0.85 mi1823-1491745-1441745-1447512(Top 28%)5924(Top 39%)5924(Top 112%)
25.2M25.20 mi0.35 mi1832-91753-81753-83310(Top 12%)2993(Top 20%)2993(Top 57%)
Finish26.22 mi1.02 mi1853-211771-181771-183328(Top 13%)2986(Top 20%)2986(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

653

Males

610

M18-39

610

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

641

Males

598

M18-39

598

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

653

Males

610

M18-39

610

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

906

Males

861

M18-39

861

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

990

Males

944

M18-39

944

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1670

Males

1600

M18-39

1600

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2946

Males

2788

M18-39

2788

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2826

Males

2661

M18-39

2661

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4020

Males

3698

M18-39

3698

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5882

Males

5135

M18-39

5135

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6674

Males

5605

M18-39

5605

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7318

Males

5888

M18-39

5888

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7512

Males

5924

M18-39

5924

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3310

Males

2993

M18-39

2993

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3328

Males

2986

M18-39

2986

Passing Analysis

Category:
Athletes Passed
258
Passed By
1235
Net Change
-977
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#876
5K → 10K1263+123#876#753
10K → 15K507+43#753#710
15K → 20K1040-30#710#740
20K → Half311-8#740#748
Half → 25K12108-96#748#844
25K → 30K3210-207#844#1051
30K → 20M572-67#1051#1118
20M → 21M1095-85#1118#1203
21M → 35K3115-112#1203#1315
35K → 23M0195-195#1315#1510
23M → 24M2166-164#1510#1674
24M → 40K4153-149#1674#1823
40K → 25.2M1019-9#1823#1832
25.2M → Finish2041-21#1832#1853
TOTALS2581235-977
📊

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