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BOSTON MARATHON 2025

Carlos Javier Castaño Barrio

Bib: 28911 M ES

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:22/mi
25:59
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:24/mi
52:05
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:47/mi
1:19:22
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:02/mi
1:47:25
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:43/mi
1:53:22
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:30/mi
2:16:25
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:26/mi
2:48:49
↑ 181↓ 1480.2%
138 ft elev
20M
10:53/mi
3:03:36
↑ 64↓ 500.2%
148 ft elev
21M
11:41/mi
3:15:17
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:59/mi
3:22:45
↑ 17↓ 861.7%
156 ft elev
23M
10:37/mi
3:36:03
↑ 23↓ 630.6%
116 ft elev
24M
10:41/mi
3:46:44
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:28/mi
3:56:32
↓ 200.3%
20 ft elev
25.2M
12:57/mi
4:01:00
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:37/mi
4:11:49
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:22
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:18:27
Pace10:34 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1925:598:2225:59
8:22
-
10K
6.21 mi12:11:2552:058:2326:06
8:24
+0:02
15K
9.32 mi12:38:421:19:228:3127:17
8:47
+0:23
20K
12.43 mi13:06:451:47:258:3928:03
9:02
+0:15
Half
13.11 mi13:12:421:53:228:395:57
8:43
-0:19
25K
15.53 mi13:35:452:16:258:4723:03
9:30
+0:47
30K
18.64 mi14:08:092:48:499:0332:24
10:26
+0:56
20M
20.00 mi14:22:563:03:369:1114:47
10:53
+0:27
21M
21.00 mi14:34:373:15:179:1811:41
11:41
+0:48
35K
21.75 mi14:42:053:22:459:197:28
9:59
-1:42
23M
23.00 mi14:55:233:36:039:2413:18
10:37
+0:38
24M
24.00 mi15:06:043:46:449:2710:41
10:41
+0:04
40K
24.85 mi15:15:523:56:329:319:48
11:28
+0:47
25.2M
25.20 mi15:20:204:01:009:344:28
12:57
+1:29
Finish
26.22 mi15:31:094:11:499:3710:49
10:37
-2:20

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

8:22 /mi

Average Pace

9:37 /mi

Slowest Pace

12:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:25

54% of race

Time at Steady Pace

1:29:27

36% of race

Time at Slower Pace

25:57

10% of race

Average Pace: 9:36 /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 mi11:45:1925:598:2225:59
8:22
#19089
10K
6.21 mi12:11:2552:058:2326:06
8:24
#19129
15K
9.32 mi12:38:421:19:228:3127:17
8:47
#19766
20K
12.43 mi13:06:451:47:258:3928:03
9:02
#20103
Half
13.11 mi13:12:421:53:228:395:57
8:43
#20104
25K
15.53 mi13:35:452:16:258:4723:03
9:30
#20524
30K
18.64 mi14:08:092:48:499:0332:24
10:26
#21133
20M
20.00 mi14:22:563:03:369:1114:47
10:53
#21366
21M
21.00 mi14:34:373:15:179:1811:41
11:41
#21530
35K
21.75 mi14:42:053:22:459:197:28
9:59
#21555
23M
23.00 mi14:55:233:36:039:2413:18
10:37
#21598
24M
24.00 mi15:06:043:46:449:2710:41
10:41
#21684
40K
24.85 mi15:15:523:56:329:319:48
11:28
#21795
25.2M
25.20 mi15:20:204:01:009:344:28
12:57
#21859
Finish
26.22 mi15:31:094:11:499:3710:49
10:37
#21969
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19089120811208120940(Top 74%)12915(Top 80%)12915(Top 229%)
10K6.21 mi3.10 mi19129-4012099-1812099-1819198(Top 68%)12146(Top 75%)12146(Top 215%)
15K9.32 mi3.11 mi19766-63712381-28212381-28220940(Top 74%)12915(Top 80%)12915(Top 229%)
20K12.43 mi3.11 mi20103-33712521-14012521-14021122(Top 74%)12944(Top 80%)12944(Top 229%)
Half13.11 mi0.68 mi20104-112513+812513+820468(Top 72%)12684(Top 79%)12684(Top 225%)
25K15.53 mi2.42 mi20524-42012681-16812681-16821882(Top 77%)13234(Top 82%)13234(Top 235%)
30K18.64 mi3.11 mi21133-60912918-23712918-23722762(Top 80%)13510(Top 84%)13510(Top 239%)
20M20.00 mi1.36 mi21366-23313004-8613004-8623326(Top 82%)13675(Top 85%)13675(Top 242%)
21M21.00 mi1.00 mi21530-16413065-6113065-6122989(Top 81%)13435(Top 83%)13435(Top 238%)
35K21.75 mi0.75 mi21555-2513066-113066-121840(Top 77%)12827(Top 80%)12827(Top 227%)
23M23.00 mi1.25 mi21598-4313055+1113055+1122328(Top 79%)13032(Top 81%)13032(Top 231%)
24M24.00 mi1.00 mi21684-8613070-1513070-1523270(Top 82%)13441(Top 83%)13441(Top 238%)
40K24.85 mi0.85 mi21795-11113087-1713087-1724060(Top 85%)13805(Top 86%)13805(Top 245%)
25.2M25.20 mi0.35 mi21859-6413111-2413111-2424951(Top 88%)14223(Top 88%)14223(Top 252%)
Finish26.22 mi1.02 mi21969-11013149-3813149-3824526(Top 86%)14042(Top 87%)14042(Top 249%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

20940

Males

12915

M18-39

12915

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19198

Males

12146

M18-39

12146

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

20940

Males

12915

M18-39

12915

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

21122

Males

12944

M18-39

12944

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

20468

Males

12684

M18-39

12684

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21882

Males

13234

M18-39

13234

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22762

Males

13510

M18-39

13510

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23326

Males

13675

M18-39

13675

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

22989

Males

13435

M18-39

13435

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

21840

Males

12827

M18-39

12827

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22328

Males

13032

M18-39

13032

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

23270

Males

13441

M18-39

13441

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24060

Males

13805

M18-39

13805

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

24951

Males

14223

M18-39

14223

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24526

Males

14042

M18-39

14042

Passing Analysis

Category:
Athletes Passed
839
Passed By
3719
Net Change
-2880
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19089
5K → 10K238278-40#19089#19129
10K → 15K53690-637#19129#19766
15K → 20K98435-337#19766#20103
20K → Half3031-1#20103#20104
Half → 25K60480-420#20104#20524
25K → 30K77686-609#20524#21133
30K → 20M48281-233#21133#21366
20M → 21M36200-164#21366#21530
21M → 35K4267-25#21530#21555
35K → 23M79122-43#21555#21598
23M → 24M26112-86#21598#21684
24M → 40K24135-111#21684#21795
40K → 25.2M872-64#21795#21859
25.2M → Finish20130-110#21859#21969
TOTALS8393719-2880
📊

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