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BOSTON MARATHON 2025

Alfonso Delgado

Bib: 7170•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 19%
Masters (Masters Men)
#0 / 10463
Top 7%
Division (M40-44)
#0 / 2247
Top 20%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:14
Rank: #3928
Start → 5K
20:14 | 6:31/mi
10K· 6.21 mi
40:05
Rank: #3419 (+509)
5K → 10K
19:51 | 6:23/mi
15K· 9.32 mi
59:52
Rank: #3159 (+260)
10K → 15K
19:47 | 6:22/mi
20K· 12.43 mi
1:20:04
Rank: #3125 (+34)
15K → 20K
20:12 | 6:30/mi
Half· 13.11 mi
1:24:28
Rank: #3128 (-3)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:40:20
Rank: #3113 (+15)
Half → 25K
15:52 | 6:33/mi
30K· 18.64 mi
2:01:23
Rank: #3108 (+5)
25K → 30K
21:03 | 6:47/mi
20M
2:10:51
Rank: #3122 (-14)
30K → 20M
9:28 | 6:58/mi
21M
2:18:15
Rank: #3128 (-6)
20M → 21M
7:24 | 7:24/mi
35K· 21.75 mi
2:23:21
Rank: #3153 (-25)
21M → 35K
5:06 | 6:49/mi
23M
2:32:21
Rank: #3190 (-37)
35K → 23M
9:00 | 7:11/mi
24M
2:39:27
Rank: #3244 (-54)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:45:36
Rank: #3278 (-34)
24M → 40K
6:09 | 7:12/mi
25.2M
2:48:18
Rank: #3287 (-9)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:55:26
Rank: #3342 (-55)
25.2M → Finish
7:08 | 7:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:28
Pace6:27 /mi
2nd Half
Distance13.11 mi
Time1:30:58
Pace6:56 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:4020:146:3120:14
6:31
-
10K
6.21 mi10:46:3140:056:2719:51
6:23
-0:08
15K
9.32 mi11:06:1859:526:2519:47
6:22
-0:01
20K
12.43 mi11:26:301:20:046:2720:12
6:30
+0:08
Half
13.11 mi11:30:541:24:286:274:24
6:27
-0:03
25K
15.53 mi11:46:461:40:206:2815:52
6:33
+0:06
30K
18.64 mi12:07:492:01:236:3121:03
6:47
+0:14
20M
20.00 mi12:17:172:10:516:339:28
6:58
+0:11
21M
21.00 mi12:24:412:18:156:357:24
7:24
+0:26
35K
21.75 mi12:29:472:23:216:355:06
6:49
-0:35
23M
23.00 mi12:38:472:32:216:379:00
7:11
+0:22
24M
24.00 mi12:45:532:39:276:397:06
7:06
-0:05
40K
24.85 mi12:52:022:45:366:406:09
7:12
+0:06
25.2M
25.20 mi12:54:442:48:186:412:42
7:50
+0:38
Finish
26.22 mi13:01:522:55:266:427:08
7:00
-0:50

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

6:22 /mi

Average Pace

6:42 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:20

57% of race

Time at Steady Pace

42:45

24% of race

Time at Slower Pace

32:21

18% of race

Average Pace: 6:41 /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 mi10:26:4020:146:3120:14
6:31
#3928
10K
6.21 mi10:46:3140:056:2719:51
6:23
#3419
15K
9.32 mi11:06:1859:526:2519:47
6:22
#3159
20K
12.43 mi11:26:301:20:046:2720:12
6:30
#3125
Half
13.11 mi11:30:541:24:286:274:24
6:27
#3128
25K
15.53 mi11:46:461:40:206:2815:52
6:33
#3113
30K
18.64 mi12:07:492:01:236:3121:03
6:47
#3108
20M
20.00 mi12:17:172:10:516:339:28
6:58
#3122
21M
21.00 mi12:24:412:18:156:357:24
7:24
#3128
35K
21.75 mi12:29:472:23:216:355:06
6:49
#3153
23M
23.00 mi12:38:472:32:216:379:00
7:11
#3190
24M
24.00 mi12:45:532:39:276:397:06
7:06
#3244
40K
24.85 mi12:52:022:45:366:406:09
7:12
#3278
25.2M
25.20 mi12:54:442:48:186:412:42
7:50
#3287
Finish
26.22 mi13:01:522:55:266:427:08
7:00
#3342
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3928371837182746(Top 10%)2616(Top 16%)2616(Top 116%)
10K6.21 mi3.10 mi3419+5093246+4723246+4722983(Top 11%)2841(Top 18%)2841(Top 126%)
15K9.32 mi3.11 mi3159+2603007+2393007+2392746(Top 10%)2616(Top 16%)2616(Top 116%)
20K12.43 mi3.11 mi3125+342978+292978+293148(Top 11%)2988(Top 19%)2988(Top 133%)
Half13.11 mi0.68 mi3128-32982-42982-43404(Top 12%)3230(Top 20%)3230(Top 144%)
25K15.53 mi2.42 mi3113+152967+152967+153134(Top 11%)2968(Top 18%)2968(Top 132%)
30K18.64 mi3.11 mi3108+52955+122955+123298(Top 12%)3086(Top 19%)3086(Top 137%)
20M20.00 mi1.36 mi3122-142960-52960-53906(Top 14%)3589(Top 22%)3589(Top 160%)
21M21.00 mi1.00 mi3128-62961-12961-14115(Top 14%)3713(Top 23%)3713(Top 165%)
35K21.75 mi0.75 mi3153-252984-232984-234224(Top 15%)3777(Top 23%)3777(Top 168%)
23M23.00 mi1.25 mi3190-373009-253009-254802(Top 17%)4178(Top 26%)4178(Top 186%)
24M24.00 mi1.00 mi3244-543059-503059-505210(Top 18%)4400(Top 27%)4400(Top 196%)
40K24.85 mi0.85 mi3278-343086-273086-275001(Top 18%)4211(Top 26%)4211(Top 187%)
25.2M25.20 mi0.35 mi3287-93090-43090-45011(Top 18%)4128(Top 26%)4128(Top 184%)
Finish26.22 mi1.02 mi3342-553130-403130-405713(Top 20%)4550(Top 28%)4550(Top 202%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2746

Males

2616

M40-44

2616

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2983

Males

2841

M40-44

2841

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2746

Males

2616

M40-44

2616

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3148

Males

2988

M40-44

2988

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3404

Males

3230

M40-44

3230

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3134

Males

2968

M40-44

2968

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3298

Males

3086

M40-44

3086

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3906

Males

3589

M40-44

3589

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

4115

Males

3713

M40-44

3713

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4224

Males

3777

M40-44

3777

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4802

Males

4178

M40-44

4178

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5210

Males

4400

M40-44

4400

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5001

Males

4211

M40-44

4211

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5011

Males

4128

M40-44

4128

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5713

Males

4550

M40-44

4550

Passing Analysis

Category:
Athletes Passed
1381
Passed By
795
Net Change
+586
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3928
5K → 10K52718+509#3928#3419
10K → 15K27313+260#3419#3159
15K → 20K10268+34#3159#3125
20K → Half1316-3#3125#3128
Half → 25K7257+15#3128#3113
25K → 30K114109+5#3113#3108
30K → 20M5569-14#3108#3122
20M → 21M4349-6#3122#3128
21M → 35K2651-25#3128#3153
35K → 23M5491-37#3153#3190
23M → 24M2579-54#3190#3244
24M → 40K3064-34#3244#3278
40K → 25.2M1625-9#3278#3287
25.2M → Finish3186-55#3287#3342
TOTALS1381795+586
📊

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