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BOSTON MARATHON 2023

Alonso Mainou

Bib: 31679•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
10:07/mi
31:27
↑ 97↓ 3451.5%
10K· 6.21 mi
9:39/mi
1:01:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:36/mi
1:31:17
↑ 67↓ 78
20K· 12.43 mi
9:55/mi
2:02:05
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:08:32
↑ 19↓ 370.5%
25K· 15.53 mi
9:59/mi
2:32:44
↑ 66↓ 880.2%
30K· 18.64 mi
11:10/mi
3:07:25
↑ 181↓ 1480.2%
20M
10:05/mi
3:21:07
↑ 64↓ 500.2%
21M
11:11/mi
3:32:18
↑ 106↓ 241.6%
35K· 21.75 mi
9:36/mi
3:39:29
↑ 17↓ 861.7%
23M
11:41/mi
3:54:07
↑ 23↓ 630.6%
24M
14:18/mi
4:08:25
↓ 821.3%
40K· 24.85 mi
11:17/mi
4:18:04
↓ 200.3%
25.2M
12:11/mi
4:22:16
↑ 13↓ 160.2%
Finish· 26.22 mi
10:32/mi
4:33:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:32
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:24:28
Pace11:01 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0131:2710:0731:27
10:07
-
10K
6.21 mi12:23:001:01:269:5329:59
9:39
-0:28
15K
9.32 mi12:52:511:31:179:4829:51
9:36
-0:03
20K
12.43 mi13:23:392:02:059:4930:48
9:55
+0:19
Half
13.11 mi13:30:062:08:329:486:27
9:27
-0:28
25K
15.53 mi13:54:182:32:449:5024:12
9:59
+0:32
30K
18.64 mi14:28:593:07:2510:0334:41
11:10
+1:11
20M
20.00 mi14:42:413:21:0710:0313:42
10:05
-1:05
21M
21.00 mi14:53:523:32:1810:0711:11
11:11
+1:06
35K
21.75 mi15:01:033:39:2910:067:11
9:36
-1:35
23M
23.00 mi15:15:413:54:0710:1114:38
11:41
+2:05
24M
24.00 mi15:29:594:08:2510:2114:18
14:18
+2:37
40K
24.85 mi15:39:384:18:0410:239:39
11:17
-3:01
25.2M
25.20 mi15:43:504:22:1610:244:12
12:11
+0:54
Finish
26.22 mi15:54:344:33:0010:2510:44
10:32
-1:39

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

9:27 /mi

Average Pace

10:25 /mi

Slowest Pace

14:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:27

2% of race

Time at Steady Pace

2:57:54

65% of race

Time at Slower Pace

1:28:39

32% of race

Average Pace: 10:25 /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 mi11:53:0131:2710:0731:27
10:07
#23732
10K
6.21 mi12:23:001:01:269:5329:59
9:39
#23361
15K
9.32 mi12:52:511:31:179:4829:51
9:36
#23135
20K
12.43 mi13:23:392:02:059:4930:48
9:55
#22995
Half
13.11 mi13:30:062:08:329:486:27
9:27
#22943
25K
15.53 mi13:54:182:32:449:5024:12
9:59
#22794
30K
18.64 mi14:28:593:07:2510:0334:41
11:10
#22915
20M
20.00 mi14:42:413:21:0710:0313:42
10:05
#22752
21M
21.00 mi14:53:523:32:1810:0711:11
11:11
#22689
35K
21.75 mi15:01:033:39:2910:067:11
9:36
#22590
23M
23.00 mi15:15:413:54:0710:1114:38
11:41
#22655
24M
24.00 mi15:29:594:08:2510:2114:18
14:18
#22966
40K
24.85 mi15:39:384:18:0410:239:39
11:17
#22950
25.2M
25.20 mi15:43:504:22:1610:244:12
12:11
#22944
Finish
26.22 mi15:54:344:33:0010:2510:44
10:32
#22958
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi23732139471394722537(Top 85%)13428(Top 88%)13428(Top 599%)
10K6.21 mi3.10 mi23361+37113786+16113786+16122927(Top 86%)13605(Top 90%)13605(Top 607%)
15K9.32 mi3.11 mi23135+22613693+9313693+9322537(Top 85%)13428(Top 88%)13428(Top 599%)
20K12.43 mi3.11 mi22995+14013630+6313630+6322685(Top 85%)13481(Top 89%)13481(Top 602%)
Half13.11 mi0.68 mi22943+5213602+2813602+2821971(Top 83%)13185(Top 87%)13185(Top 588%)
25K15.53 mi2.42 mi22794+14913521+8113521+8122174(Top 83%)13223(Top 87%)13223(Top 590%)
30K18.64 mi3.11 mi22915-12113557-3613557-3623358(Top 88%)13680(Top 90%)13680(Top 610%)
20M20.00 mi1.36 mi22752+16313466+9113466+9120698(Top 78%)12430(Top 82%)12430(Top 555%)
21M21.00 mi1.00 mi22689+6313424+4213424+4221228(Top 80%)12624(Top 83%)12624(Top 563%)
35K21.75 mi0.75 mi22590+9913370+5413370+5420167(Top 76%)12121(Top 80%)12121(Top 541%)
23M23.00 mi1.25 mi22655-6513395-2513395-2523547(Top 88%)13650(Top 90%)13650(Top 609%)
24M24.00 mi1.00 mi22966-31113525-13013525-13026186(Top 98%)14918(Top 98%)14918(Top 666%)
40K24.85 mi0.85 mi22950+1613513+1213513+1222867(Top 86%)13250(Top 87%)13250(Top 591%)
25.2M25.20 mi0.35 mi22944+613511+213511+222793(Top 86%)13226(Top 87%)13226(Top 590%)
Finish26.22 mi1.02 mi22958-1413507+413507+423063(Top 87%)13367(Top 88%)13367(Top 596%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22537

Males

13428

M40-44

13428

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22927

Males

13605

M40-44

13605

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22537

Males

13428

M40-44

13428

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22685

Males

13481

M40-44

13481

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

21971

Males

13185

M40-44

13185

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

22174

Males

13223

M40-44

13223

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23358

Males

13680

M40-44

13680

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

20698

Males

12430

M40-44

12430

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21228

Males

12624

M40-44

12624

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20167

Males

12121

M40-44

12121

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23547

Males

13650

M40-44

13650

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

26186

Males

14918

M40-44

14918

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22867

Males

13250

M40-44

13250

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22793

Males

13226

M40-44

13226

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23063

Males

13367

M40-44

13367

Passing Analysis

Category:
Athletes Passed
1727
Passed By
953
Net Change
+774
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23732
5K → 10K45180+371#23732#23361
10K → 15K27953+226#23361#23135
15K → 20K20363+140#23135#22995
20K → Half597+52#22995#22943
Half → 25K17526+149#22943#22794
25K → 30K75196-121#22794#22915
30K → 20M1685+163#22915#22752
20M → 21M8320+63#22752#22689
21M → 35K1023+99#22689#22590
35K → 23M43108-65#22590#22655
23M → 24M1312-311#22655#22966
24M → 40K4428+16#22966#22950
40K → 25.2M159+6#22950#22944
25.2M → Finish2943-14#22944#22958
TOTALS1727953+774
📊

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