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BOSTON MARATHON 2025

Juan Carlos Blanco

Bib: 9415•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 28%
Masters (Masters Men)
#0 / 10463
Top 14%
Division (M40-44)
#0 / 2247
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:05
Rank: #3566
Start → 5K
20:05 | 6:28/mi
10K· 6.21 mi
40:02
Rank: #3353 (+213)
5K → 10K
19:57 | 6:25/mi
15K· 9.32 mi
59:55
Rank: #3203 (+150)
10K → 15K
19:53 | 6:24/mi
20K· 12.43 mi
1:19:38
Rank: #2909 (+294)
15K → 20K
19:43 | 6:21/mi
Half· 13.11 mi
1:23:49
Rank: #2824 (+85)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:39:27
Rank: #2763 (+61)
Half → 25K
15:38 | 6:27/mi
30K· 18.64 mi
2:01:32
Rank: #3154 (-391)
25K → 30K
22:05 | 7:06/mi
20M
2:12:05
Rank: #3519 (-365)
30K → 20M
10:33 | 7:46/mi
21M
2:20:51
Rank: #3898 (-379)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:26:18
Rank: #4018 (-120)
21M → 35K
5:27 | 7:17/mi
23M
2:36:39
Rank: #4464 (-446)
35K → 23M
10:21 | 8:16/mi
24M
2:44:12
Rank: #4640 (-176)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
2:50:48
Rank: #4802 (-162)
24M → 40K
6:36 | 7:43/mi
25.2M
2:53:52
Rank: #4914 (-112)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:01:22
Rank: #4988 (-74)
25.2M → Finish
7:30 | 7:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:49
Pace6:24 /mi
2nd Half
Distance13.11 mi
Time1:37:33
Pace7:26 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:1720:056:2820:05
6:28
-
10K
6.21 mi11:05:1440:026:2719:57
6:25
-0:03
15K
9.32 mi11:25:0759:556:2619:53
6:24
-0:01
20K
12.43 mi11:44:501:19:386:2419:43
6:21
-0:03
Half
13.11 mi11:49:011:23:496:244:11
6:08
-0:13
25K
15.53 mi12:04:391:39:276:2415:38
6:27
+0:19
30K
18.64 mi12:26:442:01:326:3122:05
7:06
+0:39
20M
20.00 mi12:37:172:12:056:3610:33
7:46
+0:40
21M
21.00 mi12:46:032:20:516:428:46
8:46
+1:00
35K
21.75 mi12:51:302:26:186:445:27
7:17
-1:29
23M
23.00 mi13:01:512:36:396:4910:21
8:16
+0:59
24M
24.00 mi13:09:242:44:126:517:33
7:33
-0:43
40K
24.85 mi13:16:002:50:486:526:36
7:43
+0:10
25.2M
25.20 mi13:19:042:53:526:543:04
8:54
+1:11
Finish
26.22 mi13:26:343:01:226:557:30
7:22
-1:32

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

6:08 /mi

Average Pace

6:55 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:27

55% of race

Time at Steady Pace

49:11

27% of race

Time at Slower Pace

32:44

18% of race

Average Pace: 6:55 /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 mi10:45:1720:056:2820:05
6:28
#3566
10K
6.21 mi11:05:1440:026:2719:57
6:25
#3353
15K
9.32 mi11:25:0759:556:2619:53
6:24
#3203
20K
12.43 mi11:44:501:19:386:2419:43
6:21
#2909
Half
13.11 mi11:49:011:23:496:244:11
6:08
#2824
25K
15.53 mi12:04:391:39:276:2415:38
6:27
#2763
30K
18.64 mi12:26:442:01:326:3122:05
7:06
#3154
20M
20.00 mi12:37:172:12:056:3610:33
7:46
#3519
21M
21.00 mi12:46:032:20:516:428:46
8:46
#3898
35K
21.75 mi12:51:302:26:186:445:27
7:17
#4018
23M
23.00 mi13:01:512:36:396:4910:21
8:16
#4464
24M
24.00 mi13:09:242:44:126:517:33
7:33
#4640
40K
24.85 mi13:16:002:50:486:526:36
7:43
#4802
25.2M
25.20 mi13:19:042:53:526:543:04
8:54
#4914
Finish
26.22 mi13:26:343:01:226:557:30
7:22
#4988
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3566338733872943(Top 10%)2807(Top 17%)2807(Top 125%)
10K6.21 mi3.10 mi3353+2133184+2033184+2033184(Top 11%)3029(Top 19%)3029(Top 135%)
15K9.32 mi3.11 mi3203+1503045+1393045+1392943(Top 10%)2807(Top 17%)2807(Top 125%)
20K12.43 mi3.11 mi2909+2942774+2712774+2712256(Top 8%)2150(Top 13%)2150(Top 96%)
Half13.11 mi0.68 mi2824+852694+802694+801675(Top 6%)1594(Top 10%)1594(Top 71%)
25K15.53 mi2.42 mi2763+612635+592635+592602(Top 9%)2476(Top 15%)2476(Top 110%)
30K18.64 mi3.11 mi3154-3912998-3632998-3635346(Top 19%)4812(Top 30%)4812(Top 214%)
20M20.00 mi1.36 mi3519-3653323-3253323-3258763(Top 31%)6867(Top 43%)6867(Top 306%)
21M21.00 mi1.00 mi3898-3793656-3333656-33312043(Top 42%)8379(Top 52%)8379(Top 373%)
35K21.75 mi0.75 mi4018-1203755-993755-997068(Top 25%)5720(Top 36%)5720(Top 255%)
23M23.00 mi1.25 mi4464-4464128-3734128-37311780(Top 41%)8117(Top 50%)8117(Top 361%)
24M24.00 mi1.00 mi4640-1764269-1414269-1418004(Top 28%)6099(Top 38%)6099(Top 271%)
40K24.85 mi0.85 mi4802-1624400-1314400-1318159(Top 29%)6058(Top 38%)6058(Top 270%)
25.2M25.20 mi0.35 mi4914-1124485-854485-8511081(Top 39%)7487(Top 46%)7487(Top 333%)
Finish26.22 mi1.02 mi4988-744536-514536-518143(Top 29%)5976(Top 37%)5976(Top 266%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2943

Males

2807

M40-44

2807

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3184

Males

3029

M40-44

3029

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2943

Males

2807

M40-44

2807

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2256

Males

2150

M40-44

2150

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1675

Males

1594

M40-44

1594

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2602

Males

2476

M40-44

2476

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5346

Males

4812

M40-44

4812

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8763

Males

6867

M40-44

6867

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

12043

Males

8379

M40-44

8379

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7068

Males

5720

M40-44

5720

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11780

Males

8117

M40-44

8117

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

8004

Males

6099

M40-44

6099

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8159

Males

6058

M40-44

6058

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11081

Males

7487

M40-44

7487

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8143

Males

5976

M40-44

5976

Passing Analysis

Category:
Athletes Passed
1095
Passed By
2517
Net Change
-1422
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3566
5K → 10K27461+213#3566#3353
10K → 15K18030+150#3353#3203
15K → 20K2995+294#3203#2909
20K → Half850+85#2909#2824
Half → 25K9736+61#2824#2763
25K → 30K29420-391#2763#3154
30K → 20M17382-365#3154#3519
20M → 21M6385-379#3519#3898
21M → 35K17137-120#3898#4018
35K → 23M14460-446#4018#4464
23M → 24M28204-176#4464#4640
24M → 40K21183-162#4640#4802
40K → 25.2M8120-112#4802#4914
25.2M → Finish2094-74#4914#4988
TOTALS10952517-1422
📊

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