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BOSTON MARATHON 2023

Dan Albretsen

Bib: 24697•M

NY

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:03
Rank: #20579
Start → 5K
28:03 | 9:02/mi
10K· 6.21 mi
57:51
Rank: #21761 (-1182)
5K → 10K
29:48 | 9:36/mi
15K· 9.32 mi
1:27:14
Rank: #21867 (-106)
10K → 15K
29:23 | 9:27/mi
20K· 12.43 mi
1:58:16
Rank: #22164 (-297)
15K → 20K
31:02 | 9:59/mi
Half· 13.11 mi
2:04:49
Rank: #22178 (-14)
20K → Half
6:33 | 9:36/mi
25K· 15.53 mi
2:30:31
Rank: #22445 (-267)
Half → 25K
25:42 | 10:36/mi
30K· 18.64 mi
3:05:35
Rank: #22712 (-267)
25K → 30K
35:04 | 11:17/mi
20M
3:22:10
Rank: #22878 (-166)
30K → 20M
16:35 | 12:12/mi
21M
3:35:24
Rank: #22999 (-121)
20M → 21M
13:14 | 13:14/mi
35K· 21.75 mi
3:44:27
Rank: #23104 (-105)
21M → 35K
9:03 | 12:06/mi
23M
3:59:28
Rank: #23165 (-61)
35K → 23M
15:01 | 12:00/mi
24M
4:10:45
Rank: #23182 (-17)
23M → 24M
11:17 | 11:17/mi
40K· 24.85 mi
4:21:21
Rank: #23254 (-72)
24M → 40K
10:36 | 12:24/mi
25.2M
4:25:49
Rank: #23263 (-9)
40K → 25.2M
4:28 | 12:57/mi
Finish· 26.22 mi
4:36:46
Rank: #23274 (-11)
25.2M → Finish
10:57 | 10:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:49
Pace9:31 /mi
2nd Half
Distance13.11 mi
Time2:31:57
Pace11:35 /mi
📊Positive Split: 21.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2728:039:0228:03
9:02
-
10K
6.21 mi12:13:1557:519:1929:48
9:36
+0:34
15K
9.32 mi12:42:381:27:149:2229:23
9:27
-0:09
20K
12.43 mi13:13:401:58:169:3131:02
9:59
+0:32
Half
13.11 mi13:20:132:04:499:316:33
9:36
-0:23
25K
15.53 mi13:45:552:30:319:4125:42
10:36
+1:00
30K
18.64 mi14:20:593:05:359:5735:04
11:17
+0:41
20M
20.00 mi14:37:343:22:1010:0616:35
12:12
+0:55
21M
21.00 mi14:50:483:35:2410:1513:14
13:14
+1:02
35K
21.75 mi14:59:513:44:2710:199:03
12:06
-1:08
23M
23.00 mi15:14:523:59:2810:2515:01
12:00
-0:06
24M
24.00 mi15:26:094:10:4510:2711:17
11:17
-0:43
40K
24.85 mi15:36:454:21:2110:3110:36
12:24
+1:07
25.2M
25.20 mi15:41:134:25:4910:334:28
12:57
+0:33
Finish
26.22 mi15:52:104:36:4610:3410:57
10:45
-2:12

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

9:02 /mi

Average Pace

10:34 /mi

Slowest Pace

13:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:31

54% of race

Time at Steady Pace

57:18

21% of race

Time at Slower Pace

1:08:57

25% of race

Average Pace: 10:33 /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 mi11:43:2728:039:0228:03
9:02
#20579
10K
6.21 mi12:13:1557:519:1929:48
9:36
#21761
15K
9.32 mi12:42:381:27:149:2229:23
9:27
#21867
20K
12.43 mi13:13:401:58:169:3131:02
9:59
#22164
Half
13.11 mi13:20:132:04:499:316:33
9:36
#22178
25K
15.53 mi13:45:552:30:319:4125:42
10:36
#22445
30K
18.64 mi14:20:593:05:359:5735:04
11:17
#22712
20M
20.00 mi14:37:343:22:1010:0616:35
12:12
#22878
21M
21.00 mi14:50:483:35:2410:1513:14
13:14
#22999
35K
21.75 mi14:59:513:44:2710:199:03
12:06
#23104
23M
23.00 mi15:14:523:59:2810:2515:01
12:00
#23165
24M
24.00 mi15:26:094:10:4510:2711:17
11:17
#23182
40K
24.85 mi15:36:454:21:2110:3110:36
12:24
#23254
25.2M
25.20 mi15:41:134:25:4910:334:28
12:57
#23263
Finish
26.22 mi15:52:104:36:4610:3410:57
10:45
#23274
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20579124021240222126(Top 83%)13245(Top 87%)13245(Top 251%)
10K6.21 mi3.10 mi21761-118213017-61513017-61522777(Top 86%)13533(Top 89%)13533(Top 256%)
15K9.32 mi3.11 mi21867-10613083-6613083-6622126(Top 83%)13245(Top 87%)13245(Top 251%)
20K12.43 mi3.11 mi22164-29713226-14313226-14322880(Top 86%)13564(Top 89%)13564(Top 257%)
Half13.11 mi0.68 mi22178-1413230-413230-422378(Top 84%)13365(Top 88%)13365(Top 253%)
25K15.53 mi2.42 mi22445-26713348-11813348-11823349(Top 88%)13742(Top 91%)13742(Top 260%)
30K18.64 mi3.11 mi22712-26713451-10313451-10323550(Top 88%)13770(Top 91%)13770(Top 261%)
20M20.00 mi1.36 mi22878-16613522-7113522-7124431(Top 92%)14106(Top 93%)14106(Top 267%)
21M21.00 mi1.00 mi22999-12113572-5013572-5024329(Top 91%)14046(Top 93%)14046(Top 266%)
35K21.75 mi0.75 mi23104-10513611-3913611-3924764(Top 93%)14202(Top 94%)14202(Top 269%)
23M23.00 mi1.25 mi23165-6113638-2713638-2723981(Top 90%)13848(Top 91%)13848(Top 262%)
24M24.00 mi1.00 mi23182-1713636+213636+223555(Top 88%)13611(Top 90%)13611(Top 258%)
40K24.85 mi0.85 mi23254-7213665-2913665-2924329(Top 91%)13954(Top 92%)13954(Top 264%)
25.2M25.20 mi0.35 mi23263-913662+313662+323893(Top 90%)13738(Top 91%)13738(Top 260%)
Finish26.22 mi1.02 mi23274-1113656+613656+623485(Top 88%)13568(Top 89%)13568(Top 257%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

22126

Males

13245

M18-39

13245

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22777

Males

13533

M18-39

13533

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

22126

Males

13245

M18-39

13245

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22880

Males

13564

M18-39

13564

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

22378

Males

13365

M18-39

13365

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

23349

Males

13742

M18-39

13742

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

23550

Males

13770

M18-39

13770

30K→20M

18.6 - 20.0 mi

Top 92%
×5stories
+64ft-50ft

Overall

24431

Males

14106

M18-39

14106

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

24329

Males

14046

M18-39

14046

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

24764

Males

14202

M18-39

14202

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

23981

Males

13848

M18-39

13848

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23555

Males

13611

M18-39

13611

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24329

Males

13954

M18-39

13954

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23893

Males

13738

M18-39

13738

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

23485

Males

13568

M18-39

13568

Passing Analysis

Category:
Athletes Passed
474
Passed By
3169
Net Change
-2695
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20579
5K → 10K271209-1182#20579#21761
10K → 15K120226-106#21761#21867
15K → 20K52349-297#21867#22164
20K → Half2034-14#22164#22178
Half → 25K38305-267#22178#22445
25K → 30K45312-267#22445#22712
30K → 20M28194-166#22712#22878
20M → 21M17138-121#22878#22999
21M → 35K11116-105#22999#23104
35K → 23M2788-61#23104#23165
23M → 24M2643-17#23165#23182
24M → 40K2193-72#23182#23254
40K → 25.2M1827-9#23254#23263
25.2M → Finish2435-11#23263#23274
TOTALS4743169-2695
📊

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