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BOSTON MARATHON 2023

Kristoffer Mack

Bib: 4585•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 19%
Division (M18-39)
#0 / 5285
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:24
Rank: #2650
Start → 5K
20:24 | 6:34/mi
10K· 6.21 mi
40:17
Rank: #2405 (+245)
5K → 10K
19:53 | 6:24/mi
15K· 9.32 mi
1:00:12
Rank: #2311 (+94)
10K → 15K
19:55 | 6:25/mi
20K· 12.43 mi
1:20:42
Rank: #2410 (-99)
15K → 20K
20:30 | 6:36/mi
Half· 13.11 mi
1:25:08
Rank: #2432 (-22)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:41:25
Rank: #2563 (-131)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:02:54
Rank: #2710 (-147)
25K → 30K
21:29 | 6:55/mi
20M
2:12:29
Rank: #2773 (-63)
30K → 20M
9:35 | 7:03/mi
21M
2:20:02
Rank: #2866 (-93)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:25:12
Rank: #2926 (-60)
21M → 35K
5:10 | 6:54/mi
23M
2:34:09
Rank: #3012 (-86)
35K → 23M
8:57 | 7:09/mi
24M
2:41:04
Rank: #3051 (-39)
23M → 24M
6:55 | 6:55/mi
40K· 24.85 mi
2:47:10
Rank: #3089 (-38)
24M → 40K
6:06 | 7:08/mi
25.2M
2:49:47
Rank: #3093 (-4)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:56:40
Rank: #3103 (-10)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:08
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:31:32
Pace6:59 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2020:246:3420:24
6:34
-
10K
6.21 mi10:42:1340:176:2919:53
6:24
-0:10
15K
9.32 mi11:02:081:00:126:2819:55
6:25
+0:01
20K
12.43 mi11:22:381:20:426:3020:30
6:36
+0:11
Half
13.11 mi11:27:041:25:086:304:26
6:30
-0:06
25K
15.53 mi11:43:211:41:256:3216:17
6:43
+0:13
30K
18.64 mi12:04:502:02:546:3621:29
6:55
+0:12
20M
20.00 mi12:14:252:12:296:379:35
7:03
+0:08
21M
21.00 mi12:21:582:20:026:407:33
7:33
+0:30
35K
21.75 mi12:27:082:25:126:415:10
6:54
-0:39
23M
23.00 mi12:36:052:34:096:428:57
7:09
+0:15
24M
24.00 mi12:43:002:41:046:436:55
6:55
-0:14
40K
24.85 mi12:49:062:47:106:446:06
7:08
+0:13
25.2M
25.20 mi12:51:432:49:476:442:37
7:35
+0:27
Finish
26.22 mi12:58:362:56:406:456:53
6:45
-0:50

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

6:24 /mi

Average Pace

6:45 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:52

80% of race

Time at Steady Pace

32:11

18% of race

Time at Slower Pace

2:37

1% of race

Average Pace: 6:44 /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 mi10:22:2020:246:3420:24
6:34
#2650
10K
6.21 mi10:42:1340:176:2919:53
6:24
#2405
15K
9.32 mi11:02:081:00:126:2819:55
6:25
#2311
20K
12.43 mi11:22:381:20:426:3020:30
6:36
#2410
Half
13.11 mi11:27:041:25:086:304:26
6:30
#2432
25K
15.53 mi11:43:211:41:256:3216:17
6:43
#2563
30K
18.64 mi12:04:502:02:546:3621:29
6:55
#2710
20M
20.00 mi12:14:252:12:296:379:35
7:03
#2773
21M
21.00 mi12:21:582:20:026:407:33
7:33
#2866
35K
21.75 mi12:27:082:25:126:415:10
6:54
#2926
23M
23.00 mi12:36:052:34:096:428:57
7:09
#3012
24M
24.00 mi12:43:002:41:046:436:55
6:55
#3051
40K
24.85 mi12:49:062:47:106:446:06
7:08
#3089
25.2M
25.20 mi12:51:432:49:476:442:37
7:35
#3093
Finish
26.22 mi12:58:362:56:406:456:53
6:45
#3103
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2650252425242165(Top 8%)2078(Top 14%)2078(Top 39%)
10K6.21 mi3.10 mi2405+2452296+2282296+2282248(Top 8%)2151(Top 14%)2151(Top 41%)
15K9.32 mi3.11 mi2311+942213+832213+832165(Top 8%)2078(Top 14%)2078(Top 39%)
20K12.43 mi3.11 mi2410-992308-952308-952838(Top 11%)2712(Top 18%)2712(Top 51%)
Half13.11 mi0.68 mi2432-222331-232331-232799(Top 11%)2683(Top 18%)2683(Top 51%)
25K15.53 mi2.42 mi2563-1312454-1232454-1233473(Top 13%)3286(Top 22%)3286(Top 62%)
30K18.64 mi3.11 mi2710-1472590-1362590-1363740(Top 14%)3506(Top 23%)3506(Top 66%)
20M20.00 mi1.36 mi2773-632649-592649-594307(Top 16%)3967(Top 26%)3967(Top 75%)
21M21.00 mi1.00 mi2866-932738-892738-894791(Top 18%)4318(Top 28%)4318(Top 82%)
35K21.75 mi0.75 mi2926-602787-492787-494754(Top 18%)4290(Top 28%)4290(Top 81%)
23M23.00 mi1.25 mi3012-862862-752862-754524(Top 17%)4096(Top 27%)4096(Top 78%)
24M24.00 mi1.00 mi3051-392895-332895-334233(Top 16%)3845(Top 25%)3845(Top 73%)
40K24.85 mi0.85 mi3089-382926-312926-314511(Top 17%)3993(Top 26%)3993(Top 76%)
25.2M25.20 mi0.35 mi3093-42930-42930-44250(Top 16%)3720(Top 25%)3720(Top 70%)
Finish26.22 mi1.02 mi3103-102938-82938-83793(Top 14%)3365(Top 22%)3365(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2165

Males

2078

M18-39

2078

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2248

Males

2151

M18-39

2151

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2165

Males

2078

M18-39

2078

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2838

Males

2712

M18-39

2712

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2799

Males

2683

M18-39

2683

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3473

Males

3286

M18-39

3286

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3740

Males

3506

M18-39

3506

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4307

Males

3967

M18-39

3967

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4791

Males

4318

M18-39

4318

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4754

Males

4290

M18-39

4290

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4524

Males

4096

M18-39

4096

23M→24M

23.0 - 24.0 mi

Top 16%
×6stories
+12ft-82ft

Overall

4233

Males

3845

M18-39

3845

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4511

Males

3993

M18-39

3993

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4250

Males

3720

M18-39

3720

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3793

Males

3365

M18-39

3365

Passing Analysis

Category:
Athletes Passed
733
Passed By
1186
Net Change
-453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2650
5K → 10K29348+245#2650#2405
10K → 15K13339+94#2405#2311
15K → 20K37136-99#2311#2410
20K → Half325-22#2410#2432
Half → 25K21152-131#2432#2563
25K → 30K33180-147#2563#2710
30K → 20M2083-63#2710#2773
20M → 21M20113-93#2773#2866
21M → 35K1676-60#2866#2926
35K → 23M30116-86#2926#3012
23M → 24M2665-39#3012#3051
24M → 40K3472-38#3051#3089
40K → 25.2M1519-4#3089#3093
25.2M → Finish5262-10#3093#3103
TOTALS7331186-453
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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