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BOSTON MARATHON 2023

Alex Fruin

Bib: 27537•M

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
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
8:59/mi
27:54
↑ 97↓ 3451.5%
10K· 6.21 mi
9:43/mi
58:05
↑ 79↓ 1380.4%
15K· 9.32 mi
9:45/mi
1:28:24
↑ 67↓ 78
20K· 12.43 mi
9:56/mi
1:59:15
↑ 106↓ 860.1%
Half· 13.11 mi
9:36/mi
2:05:48
↑ 19↓ 370.5%
25K· 15.53 mi
10:24/mi
2:31:00
↑ 66↓ 880.2%
30K· 18.64 mi
10:56/mi
3:04:57
↑ 181↓ 1480.2%
20M
10:48/mi
3:19:37
↑ 64↓ 500.2%
21M
12:36/mi
3:32:13
↑ 106↓ 241.6%
35K· 21.75 mi
10:46/mi
3:40:16
↑ 17↓ 861.7%
23M
10:57/mi
3:53:58
↑ 23↓ 630.6%
24M
10:21/mi
4:04:19
↓ 821.3%
40K· 24.85 mi
10:46/mi
4:13:31
↓ 200.3%
25.2M
11:21/mi
4:17:26
↑ 13↓ 160.2%
Finish· 26.22 mi
10:23/mi
4:28:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:48
Pace9:36 /mi
2nd Half
Distance13.11 mi
Time2:22:13
Pace10:51 /mi
📊Positive Split: 13.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5827:548:5927:54
8:59
-
10K
6.21 mi12:15:0958:059:2130:11
9:43
+0:44
15K
9.32 mi12:45:281:28:249:2930:19
9:45
+0:02
20K
12.43 mi13:16:191:59:159:3630:51
9:56
+0:11
Half
13.11 mi13:22:522:05:489:366:33
9:36
-0:20
25K
15.53 mi13:48:042:31:009:4325:12
10:24
+0:48
30K
18.64 mi14:22:013:04:579:5533:57
10:56
+0:32
20M
20.00 mi14:36:413:19:379:5914:40
10:48
-0:08
21M
21.00 mi14:49:173:32:1310:0612:36
12:36
+1:48
35K
21.75 mi14:57:203:40:1610:088:03
10:46
-1:50
23M
23.00 mi15:11:023:53:5810:1013:42
10:57
+0:11
24M
24.00 mi15:21:234:04:1910:1110:21
10:21
-0:36
40K
24.85 mi15:30:354:13:3110:129:12
10:46
+0:25
25.2M
25.20 mi15:34:304:17:2610:133:55
11:21
+0:35
Finish
26.22 mi15:45:054:28:0110:1410:35
10:23
-0:58

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

8:59 /mi

Average Pace

10:14 /mi

Slowest Pace

12:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:48

47% of race

Time at Steady Pace

1:18:03

29% of race

Time at Slower Pace

1:04:10

24% of race

Average Pace: 10:13 /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 mi11:44:5827:548:5927:54
8:59
#20357
10K
6.21 mi12:15:0958:059:2130:11
9:43
#21878
15K
9.32 mi12:45:281:28:249:2930:19
9:45
#22258
20K
12.43 mi13:16:191:59:159:3630:51
9:56
#22380
Half
13.11 mi13:22:522:05:489:366:33
9:36
#22387
25K
15.53 mi13:48:042:31:009:4325:12
10:24
#22528
30K
18.64 mi14:22:013:04:579:5533:57
10:56
#22616
20M
20.00 mi14:36:413:19:379:5914:40
10:48
#22584
21M
21.00 mi14:49:173:32:1310:0612:36
12:36
#22681
35K
21.75 mi14:57:203:40:1610:088:03
10:46
#22684
23M
23.00 mi15:11:023:53:5810:1013:42
10:57
#22644
24M
24.00 mi15:21:234:04:1910:1110:21
10:21
#22594
40K
24.85 mi15:30:354:13:3110:129:12
10:46
#22575
25.2M
25.20 mi15:34:304:17:2610:133:55
11:21
#22565
Finish
26.22 mi15:45:054:28:0110:1410:35
10:23
#22557
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi20357123081230822940(Top 86%)13610(Top 90%)13610(Top 663%)
10K6.21 mi3.10 mi21878-152113074-76613074-76623081(Top 87%)13683(Top 90%)13683(Top 667%)
15K9.32 mi3.11 mi22258-38013270-19613270-19622940(Top 86%)13610(Top 90%)13610(Top 663%)
20K12.43 mi3.11 mi22380-12213340-7013340-7022728(Top 85%)13502(Top 89%)13502(Top 658%)
Half13.11 mi0.68 mi22387-713343-313343-322370(Top 84%)13357(Top 88%)13357(Top 651%)
25K15.53 mi2.42 mi22528-14113387-4413387-4422996(Top 86%)13586(Top 90%)13586(Top 662%)
30K18.64 mi3.11 mi22616-8813401-1413401-1422975(Top 86%)13500(Top 89%)13500(Top 658%)
20M20.00 mi1.36 mi22584+3213382+1913382+1922334(Top 84%)13155(Top 87%)13155(Top 641%)
21M21.00 mi1.00 mi22681-9713419-3713419-3723577(Top 89%)13704(Top 90%)13704(Top 668%)
35K21.75 mi0.75 mi22684-313410+913410+922841(Top 86%)13310(Top 88%)13310(Top 649%)
23M23.00 mi1.25 mi22644+4013389+2113389+2122226(Top 83%)13024(Top 86%)13024(Top 635%)
24M24.00 mi1.00 mi22594+5013355+3413355+3421665(Top 81%)12721(Top 84%)12721(Top 620%)
40K24.85 mi0.85 mi22575+1913340+1513340+1521847(Top 82%)12759(Top 84%)12759(Top 622%)
25.2M25.20 mi0.35 mi22565+1013331+913331+921238(Top 80%)12504(Top 82%)12504(Top 609%)
Finish26.22 mi1.02 mi22557+813317+1413317+1422762(Top 86%)13208(Top 87%)13208(Top 644%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

22940

Males

13610

M50-54

13610

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23081

Males

13683

M50-54

13683

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

22940

Males

13610

M50-54

13610

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22728

Males

13502

M50-54

13502

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22370

Males

13357

M50-54

13357

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

22996

Males

13586

M50-54

13586

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

22975

Males

13500

M50-54

13500

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22334

Males

13155

M50-54

13155

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

23577

Males

13704

M50-54

13704

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22841

Males

13310

M50-54

13310

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22226

Males

13024

M50-54

13024

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21665

Males

12721

M50-54

12721

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21847

Males

12759

M50-54

12759

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21238

Males

12504

M50-54

12504

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22762

Males

13208

M50-54

13208

Passing Analysis

Category:
Athletes Passed
687
Passed By
2887
Net Change
-2200
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20357
5K → 10K151536-1521#20357#21878
10K → 15K61441-380#21878#22258
15K → 20K89211-122#22258#22380
20K → Half2229-7#22380#22387
Half → 25K58199-141#22387#22528
25K → 30K86174-88#22528#22616
30K → 20M7240+32#22616#22584
20M → 21M21118-97#22584#22681
21M → 35K3336-3#22681#22684
35K → 23M7333+40#22684#22644
23M → 24M599+50#22644#22594
24M → 40K3819+19#22594#22575
40K → 25.2M188+10#22575#22565
25.2M → Finish4234+8#22565#22557
TOTALS6872887-2200
📊

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