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BOSTON MARATHON 2023

Juan Carlos Blanco

Bib: 4161•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 49%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #4178
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
40:57
Rank: #3089 (+1089)
5K → 10K
19:58 | 6:26/mi
15K· 9.32 mi
1:00:53
Rank: #2713 (+376)
10K → 15K
19:56 | 6:25/mi
20K· 12.43 mi
1:21:13
Rank: #2650 (+63)
15K → 20K
20:20 | 6:33/mi
Half· 13.11 mi
1:25:39
Rank: #2652 (-2)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:41:28
Rank: #2582 (+70)
Half → 25K
15:49 | 6:31/mi
30K· 18.64 mi
2:02:34
Rank: #2606 (-24)
25K → 30K
21:06 | 6:47/mi
20M
2:11:56
Rank: #2634 (-28)
30K → 20M
9:22 | 6:54/mi
21M
2:19:41
Rank: #2760 (-126)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:24:49
Rank: #2809 (-49)
21M → 35K
5:08 | 6:52/mi
23M
2:34:16
Rank: #3045 (-236)
35K → 23M
9:27 | 7:33/mi
24M
2:41:42
Rank: #3236 (-191)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
2:48:24
Rank: #3463 (-227)
24M → 40K
6:42 | 7:50/mi
25.2M
2:51:26
Rank: #3590 (-127)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
2:59:20
Rank: #3970 (-380)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:39
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:33:41
Pace7:09 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5820:596:4520:59
6:45
-
10K
6.21 mi10:42:5640:576:3519:58
6:26
-0:19
15K
9.32 mi11:02:521:00:536:3219:56
6:25
-0:01
20K
12.43 mi11:23:121:21:136:3220:20
6:33
+0:08
Half
13.11 mi11:27:381:25:396:324:26
6:30
-0:03
25K
15.53 mi11:43:271:41:286:3215:49
6:31
+0:01
30K
18.64 mi12:04:332:02:346:3521:06
6:47
+0:16
20M
20.00 mi12:13:552:11:566:369:22
6:54
+0:07
21M
21.00 mi12:21:402:19:416:397:45
7:45
+0:51
35K
21.75 mi12:26:482:24:496:405:08
6:52
-0:53
23M
23.00 mi12:36:152:34:166:429:27
7:33
+0:41
24M
24.00 mi12:43:412:41:426:447:26
7:26
-0:07
40K
24.85 mi12:50:232:48:246:476:42
7:50
+0:24
25.2M
25.20 mi12:53:252:51:266:483:02
8:48
+0:58
Finish
26.22 mi13:01:192:59:206:517:54
7:45
-1:03

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

6:25 /mi

Average Pace

6:51 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:09

34% of race

Time at Steady Pace

1:16:55

43% of race

Time at Slower Pace

42:16

24% of race

Average Pace: 6:50 /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 mi10:22:5820:596:4520:59
6:45
#4178
10K
6.21 mi10:42:5640:576:3519:58
6:26
#3089
15K
9.32 mi11:02:521:00:536:3219:56
6:25
#2713
20K
12.43 mi11:23:121:21:136:3220:20
6:33
#2650
Half
13.11 mi11:27:381:25:396:324:26
6:30
#2652
25K
15.53 mi11:43:271:41:286:3215:49
6:31
#2582
30K
18.64 mi12:04:332:02:346:3521:06
6:47
#2606
20M
20.00 mi12:13:552:11:566:369:22
6:54
#2634
21M
21.00 mi12:21:402:19:416:397:45
7:45
#2760
35K
21.75 mi12:26:482:24:496:405:08
6:52
#2809
23M
23.00 mi12:36:152:34:166:429:27
7:33
#3045
24M
24.00 mi12:43:412:41:426:447:26
7:26
#3236
40K
24.85 mi12:50:232:48:246:476:42
7:50
#3463
25.2M
25.20 mi12:53:252:51:266:483:02
8:48
#3590
Finish
26.22 mi13:01:192:59:206:517:54
7:45
#3970
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4178391439142189(Top 8%)2102(Top 14%)2102(Top 40%)
10K6.21 mi3.10 mi3089+10892939+9752939+9752382(Top 9%)2282(Top 15%)2282(Top 43%)
15K9.32 mi3.11 mi2713+3762591+3482591+3482189(Top 8%)2102(Top 14%)2102(Top 40%)
20K12.43 mi3.11 mi2650+632532+592532+592547(Top 10%)2439(Top 16%)2439(Top 46%)
Half13.11 mi0.68 mi2652-22534-22534-22829(Top 11%)2713(Top 18%)2713(Top 51%)
25K15.53 mi2.42 mi2582+702470+642470+642303(Top 9%)2209(Top 15%)2209(Top 42%)
30K18.64 mi3.11 mi2606-242488-182488-182936(Top 11%)2781(Top 18%)2781(Top 53%)
20M20.00 mi1.36 mi2634-282517-292517-293386(Top 13%)3169(Top 21%)3169(Top 60%)
21M21.00 mi1.00 mi2760-1262638-1212638-1215858(Top 22%)5085(Top 34%)5085(Top 96%)
35K21.75 mi0.75 mi2809-492684-462684-464545(Top 17%)4136(Top 27%)4136(Top 78%)
23M23.00 mi1.25 mi3045-2362892-2082892-2086679(Top 25%)5610(Top 37%)5610(Top 106%)
24M24.00 mi1.00 mi3236-1913062-1703062-1707213(Top 27%)5826(Top 38%)5826(Top 110%)
40K24.85 mi0.85 mi3463-2273271-2093271-2098858(Top 33%)6720(Top 44%)6720(Top 127%)
25.2M25.20 mi0.35 mi3590-1273383-1123383-11211173(Top 42%)7836(Top 52%)7836(Top 148%)
Finish26.22 mi1.02 mi3970-3803715-3323715-33210270(Top 39%)7415(Top 49%)7415(Top 140%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2189

Males

2102

M18-39

2102

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2382

Males

2282

M18-39

2282

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2189

Males

2102

M18-39

2102

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2547

Males

2439

M18-39

2439

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2829

Males

2713

M18-39

2713

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2303

Males

2209

M18-39

2209

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

2936

Males

2781

M18-39

2781

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3386

Males

3169

M18-39

3169

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5858

Males

5085

M18-39

5085

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4545

Males

4136

M18-39

4136

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

6679

Males

5610

M18-39

5610

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7213

Males

5826

M18-39

5826

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8858

Males

6720

M18-39

6720

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11173

Males

7836

M18-39

7836

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10270

Males

7415

M18-39

7415

Passing Analysis

Category:
Athletes Passed
1835
Passed By
1627
Net Change
+208
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4178
5K → 10K10934+1089#4178#3089
10K → 15K3793+376#3089#2713
15K → 20K10845+63#2713#2650
20K → Half1214-2#2650#2652
Half → 25K8717+70#2652#2582
25K → 30K6084-24#2582#2606
30K → 20M3159-28#2606#2634
20M → 21M13139-126#2634#2760
21M → 35K1463-49#2760#2809
35K → 23M13249-236#2809#3045
23M → 24M11202-191#3045#3236
24M → 40K7234-227#3236#3463
40K → 25.2M3130-127#3463#3590
25.2M → Finish4384-380#3590#3970
TOTALS18351627+208
📊

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