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BOSTON MARATHON 2025

Alejandro Del Campo Arrieta

Bib: 12887•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Masters (Masters Men)
#0 / 10463
Top 36%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
7:13/mi
22:24
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:09/mi
1:07:14
↑ 67↓ 78
20K· 12.43 mi
7:23/mi
1:30:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:35:08
↑ 19↓ 370.5%
25K· 15.53 mi
7:36/mi
1:53:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:18:10
↑ 181↓ 1480.2%
20M
8:08/mi
2:29:13
↑ 64↓ 500.2%
21M
8:29/mi
2:37:42
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:43:29
↑ 17↓ 861.7%
23M
7:59/mi
2:53:29
↑ 23↓ 630.6%
24M
7:46/mi
3:01:15
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:08:01
↓ 200.3%
25.2M
8:54/mi
3:11:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:35/mi
3:18:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:08
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:43:41
Pace7:55 /mi
📊Positive Split: 9.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5422:247:1322:24
7:13
-
10K
6.21 mi11:12:3045:007:1522:36
7:16
+0:03
15K
9.32 mi11:34:441:07:147:1322:14
7:09
-0:07
20K
12.43 mi11:57:401:30:107:1522:56
7:23
+0:14
Half
13.11 mi12:02:381:35:087:154:58
7:17
-0:06
25K
15.53 mi12:21:041:53:347:1918:26
7:36
+0:19
30K
18.64 mi12:45:402:18:107:2524:36
7:55
+0:19
20M
20.00 mi12:56:432:29:137:2811:03
8:08
+0:13
21M
21.00 mi13:05:122:37:427:318:29
8:29
+0:21
35K
21.75 mi13:10:592:43:297:315:47
7:44
-0:45
23M
23.00 mi13:20:592:53:297:3310:00
7:59
+0:15
24M
24.00 mi13:28:453:01:157:337:46
7:46
-0:13
40K
24.85 mi13:35:313:08:017:346:46
7:55
+0:09
25.2M
25.20 mi13:38:353:11:057:353:04
8:54
+0:59
Finish
26.22 mi13:46:193:18:497:357:44
7:35
-1:19

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

7:09 /mi

Average Pace

7:35 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:08

48% of race

Time at Steady Pace

1:11:05

36% of race

Time at Slower Pace

32:36

16% of race

Average Pace: 7:35 /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 mi10:49:5422:247:1322:24
7:13
#9534
10K
6.21 mi11:12:3045:007:1522:36
7:16
#9814
15K
9.32 mi11:34:441:07:147:1322:14
7:09
#9426
20K
12.43 mi11:57:401:30:107:1522:56
7:23
#9457
Half
13.11 mi12:02:381:35:087:154:58
7:17
#9458
25K
15.53 mi12:21:041:53:347:1918:26
7:36
#9664
30K
18.64 mi12:45:402:18:107:2524:36
7:55
#9802
20M
20.00 mi12:56:432:29:137:2811:03
8:08
#9876
21M
21.00 mi13:05:122:37:427:318:29
8:29
#9877
35K
21.75 mi13:10:592:43:297:315:47
7:44
#9890
23M
23.00 mi13:20:592:53:297:3310:00
7:59
#9875
24M
24.00 mi13:28:453:01:157:337:46
7:46
#9820
40K
24.85 mi13:35:313:08:017:346:46
7:55
#9784
25.2M
25.20 mi13:38:353:11:057:353:04
8:54
#9791
Finish
26.22 mi13:46:193:18:497:357:44
7:35
#9765
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9534791179118748(Top 31%)7404(Top 46%)7404(Top 310%)
10K6.21 mi3.10 mi9814-2808074-1638074-16310125(Top 36%)8214(Top 51%)8214(Top 344%)
15K9.32 mi3.11 mi9426+3887834+2407834+2408748(Top 31%)7404(Top 46%)7404(Top 310%)
20K12.43 mi3.11 mi9457-317809+257809+259724(Top 34%)7863(Top 49%)7863(Top 330%)
Half13.11 mi0.68 mi9458-17805+47805+49777(Top 34%)7905(Top 49%)7905(Top 331%)
25K15.53 mi2.42 mi9664-2067887-827887-8210765(Top 38%)8264(Top 51%)8264(Top 346%)
30K18.64 mi3.11 mi9802-1387907-207907-2010764(Top 38%)8061(Top 50%)8061(Top 338%)
20M20.00 mi1.36 mi9876-747920-137920-1311298(Top 40%)8177(Top 51%)8177(Top 343%)
21M21.00 mi1.00 mi9877-17883+377883+3710318(Top 36%)7515(Top 47%)7515(Top 315%)
35K21.75 mi0.75 mi9890-137863+207863+2010258(Top 36%)7492(Top 47%)7492(Top 314%)
23M23.00 mi1.25 mi9875+157799+647799+649912(Top 35%)7187(Top 45%)7187(Top 301%)
24M24.00 mi1.00 mi9820+557743+567743+569544(Top 34%)6936(Top 43%)6936(Top 291%)
40K24.85 mi0.85 mi9784+367687+567687+569539(Top 34%)6813(Top 42%)6813(Top 286%)
25.2M25.20 mi0.35 mi9791-77669+187669+1811125(Top 39%)7531(Top 47%)7531(Top 316%)
Finish26.22 mi1.02 mi9765+267623+467623+469824(Top 35%)6885(Top 43%)6885(Top 289%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8748

Males

7404

M45-49

7404

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10125

Males

8214

M45-49

8214

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8748

Males

7404

M45-49

7404

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9724

Males

7863

M45-49

7863

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9777

Males

7905

M45-49

7905

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10765

Males

8264

M45-49

8264

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10764

Males

8061

M45-49

8061

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11298

Males

8177

M45-49

8177

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10318

Males

7515

M45-49

7515

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10258

Males

7492

M45-49

7492

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9912

Males

7187

M45-49

7187

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9544

Males

6936

M45-49

6936

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9539

Males

6813

M45-49

6813

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11125

Males

7531

M45-49

7531

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9824

Males

6885

M45-49

6885

Passing Analysis

Category:
Athletes Passed
1715
Passed By
1942
Net Change
-231
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9534
5K → 10K131410-280#9534#9814
10K → 15K41830+388#9814#9426
15K → 20K179210-31#9426#9457
20K → Half3233-1#9457#9458
Half → 25K101307-206#9458#9664
25K → 30K186324-138#9664#9802
30K → 20M87160-74#9802#9876
20M → 21M99100-1#9876#9877
21M → 35K5971-13#9877#9890
35K → 23M11498+15#9890#9875
23M → 24M10146+55#9875#9820
24M → 40K8347+36#9820#9784
40K → 25.2M4451-7#9784#9791
25.2M → Finish8155+26#9791#9765
TOTALS17151942-231
📊

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