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BOSTON MARATHON 2023

Alfredo Cortes

Bib: 4011•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 22%
Division (M18-39)
#0 / 5285
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #4170
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
41:44
Rank: #4145 (+25)
5K → 10K
20:45 | 6:41/mi
15K· 9.32 mi
1:02:35
Rank: #4153 (-8)
10K → 15K
20:51 | 6:43/mi
20K· 12.43 mi
1:23:31
Rank: #4056 (+97)
15K → 20K
20:56 | 6:44/mi
Half· 13.11 mi
1:28:03
Rank: #4037 (+19)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:35
Rank: #4075 (-38)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:05:47
Rank: #3827 (+248)
25K → 30K
21:12 | 6:49/mi
20M
2:15:13
Rank: #3781 (+46)
30K → 20M
9:26 | 6:57/mi
21M
2:22:10
Rank: #3610 (+171)
20M → 21M
6:57 | 6:57/mi
35K· 21.75 mi
2:27:07
Rank: #3574 (+36)
21M → 35K
4:57 | 6:37/mi
23M
2:35:43
Rank: #3496 (+78)
35K → 23M
8:36 | 6:52/mi
24M
2:42:23
Rank: #3450 (+46)
23M → 24M
6:40 | 6:40/mi
40K· 24.85 mi
2:48:23
Rank: #3455 (-5)
24M → 40K
6:00 | 7:01/mi
25.2M
2:51:00
Rank: #3460 (-5)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:58:07
Rank: #3528 (-68)
25.2M → Finish
7:07 | 6:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:03
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:30:04
Pace6:52 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4020:596:4520:59
6:45
-
10K
6.21 mi10:43:2541:446:4320:45
6:41
-0:04
15K
9.32 mi11:04:161:02:356:4320:51
6:43
+0:02
20K
12.43 mi11:25:121:23:316:4320:56
6:44
+0:01
Half
13.11 mi11:29:441:28:036:434:32
6:39
-0:05
25K
15.53 mi11:46:161:44:356:4416:32
6:49
+0:10
30K
18.64 mi12:07:282:05:476:4521:12
6:49
0:00
20M
20.00 mi12:16:542:15:136:469:26
6:57
+0:08
21M
21.00 mi12:23:512:22:106:466:57
6:57
0:00
35K
21.75 mi12:28:482:27:076:464:57
6:37
-0:20
23M
23.00 mi12:37:242:35:436:468:36
6:52
+0:15
24M
24.00 mi12:44:042:42:236:466:40
6:40
-0:12
40K
24.85 mi12:50:042:48:236:466:00
7:01
+0:21
25.2M
25.20 mi12:52:412:51:006:472:37
7:35
+0:34
Finish
26.22 mi12:59:482:58:076:487:07
6:59
-0:36

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

6:37 /mi

Average Pace

6:48 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:30

99% of race

Time at Steady Pace

2:37

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:22:4020:596:4520:59
6:45
#4170
10K
6.21 mi10:43:2541:446:4320:45
6:41
#4145
15K
9.32 mi11:04:161:02:356:4320:51
6:43
#4153
20K
12.43 mi11:25:121:23:316:4320:56
6:44
#4056
Half
13.11 mi11:29:441:28:036:434:32
6:39
#4037
25K
15.53 mi11:46:161:44:356:4416:32
6:49
#4075
30K
18.64 mi12:07:282:05:476:4521:12
6:49
#3827
20M
20.00 mi12:16:542:15:136:469:26
6:57
#3781
21M
21.00 mi12:23:512:22:106:466:57
6:57
#3610
35K
21.75 mi12:28:482:27:076:464:57
6:37
#3574
23M
23.00 mi12:37:242:35:436:468:36
6:52
#3496
24M
24.00 mi12:44:042:42:236:466:40
6:40
#3450
40K
24.85 mi12:50:042:48:236:466:00
7:01
#3455
25.2M
25.20 mi12:52:412:51:006:472:37
7:35
#3460
Finish
26.22 mi12:59:482:58:076:487:07
6:59
#3528
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4170390639064227(Top 16%)3964(Top 26%)3964(Top 75%)
10K6.21 mi3.10 mi4145+253891+153891+154142(Top 16%)3886(Top 26%)3886(Top 74%)
15K9.32 mi3.11 mi4153-83899-83899-84227(Top 16%)3964(Top 26%)3964(Top 75%)
20K12.43 mi3.11 mi4056+973809+903809+903860(Top 14%)3640(Top 24%)3640(Top 69%)
Half13.11 mi0.68 mi4037+193792+173792+173778(Top 14%)3562(Top 23%)3562(Top 67%)
25K15.53 mi2.42 mi4075-383828-363828-364351(Top 16%)4055(Top 27%)4055(Top 77%)
30K18.64 mi3.11 mi3827+2483609+2193609+2193121(Top 12%)2941(Top 19%)2941(Top 56%)
20M20.00 mi1.36 mi3781+463569+403569+403700(Top 14%)3444(Top 23%)3444(Top 65%)
21M21.00 mi1.00 mi3610+1713414+1553414+1551907(Top 7%)1807(Top 12%)1807(Top 34%)
35K21.75 mi0.75 mi3574+363381+333381+333098(Top 12%)2900(Top 19%)2900(Top 55%)
23M23.00 mi1.25 mi3496+783304+773304+773050(Top 11%)2845(Top 19%)2845(Top 54%)
24M24.00 mi1.00 mi3450+463261+433261+432938(Top 11%)2730(Top 18%)2730(Top 52%)
40K24.85 mi0.85 mi3455-53263-23263-23913(Top 15%)3516(Top 23%)3516(Top 67%)
25.2M25.20 mi0.35 mi3460-53268-53268-54261(Top 16%)3731(Top 25%)3731(Top 71%)
Finish26.22 mi1.02 mi3528-683323-553323-555082(Top 19%)4317(Top 28%)4317(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4227

Males

3964

M18-39

3964

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4142

Males

3886

M18-39

3886

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4227

Males

3964

M18-39

3964

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3860

Males

3640

M18-39

3640

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3778

Males

3562

M18-39

3562

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4351

Males

4055

M18-39

4055

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3121

Males

2941

M18-39

2941

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3700

Males

3444

M18-39

3444

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1907

Males

1807

M18-39

1807

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3098

Males

2900

M18-39

2900

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3050

Males

2845

M18-39

2845

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2938

Males

2730

M18-39

2730

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3913

Males

3516

M18-39

3516

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4261

Males

3731

M18-39

3731

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5082

Males

4317

M18-39

4317

Passing Analysis

Category:
Athletes Passed
1430
Passed By
788
Net Change
+642
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4170
5K → 10K233208+25#4170#4145
10K → 15K124132-8#4145#4153
15K → 20K15457+97#4153#4056
20K → Half3314+19#4056#4037
Half → 25K65103-38#4037#4075
25K → 30K26618+248#4075#3827
30K → 20M8034+46#3827#3781
20M → 21M1721+171#3781#3610
21M → 35K5216+36#3610#3574
35K → 23M10325+78#3574#3496
23M → 24M6620+46#3496#3450
24M → 40K4247-5#3450#3455
40K → 25.2M1116-5#3455#3460
25.2M → Finish2997-68#3460#3528
TOTALS1430788+642
📊

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