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BOSTON MARATHON 2025

Alfonso Palacios

Bib: 9877•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 30%
Masters (Masters Men)
#0 / 10463
Top 16%
Division (M50-54)
#0 / 1996
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:24
Rank: #6957
Start → 5K
21:24 | 6:53/mi
10K· 6.21 mi
42:17
Rank: #6343 (+614)
5K → 10K
20:53 | 6:43/mi
15K· 9.32 mi
1:03:19
Rank: #6121 (+222)
10K → 15K
21:02 | 6:46/mi
20K· 12.43 mi
1:24:38
Rank: #6030 (+91)
15K → 20K
21:19 | 6:52/mi
Half· 13.11 mi
1:29:13
Rank: #5998 (+32)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:46:11
Rank: #6026 (-28)
Half → 25K
16:58 | 7:00/mi
30K· 18.64 mi
2:08:34
Rank: #5955 (+71)
25K → 30K
22:23 | 7:12/mi
20M
2:18:25
Rank: #5876 (+79)
30K → 20M
9:51 | 7:15/mi
21M
2:26:02
Rank: #5775 (+101)
20M → 21M
7:37 | 7:37/mi
35K· 21.75 mi
2:31:04
Rank: #5679 (+96)
21M → 35K
5:02 | 6:44/mi
23M
2:40:09
Rank: #5572 (+107)
35K → 23M
9:05 | 7:15/mi
24M
2:47:22
Rank: #5528 (+44)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
2:53:37
Rank: #5485 (+43)
24M → 40K
6:15 | 7:19/mi
25.2M
2:56:23
Rank: #5459 (+26)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:03:27
Rank: #5408 (+51)
25.2M → Finish
7:04 | 6:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:13
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:34:14
Pace7:11 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0721:246:5321:24
6:53
-
10K
6.21 mi11:08:0042:176:4820:53
6:43
-0:10
15K
9.32 mi11:29:021:03:196:4821:02
6:46
+0:03
20K
12.43 mi11:50:211:24:386:4921:19
6:52
+0:06
Half
13.11 mi11:54:561:29:136:484:35
6:43
-0:09
25K
15.53 mi12:11:541:46:116:5016:58
7:00
+0:17
30K
18.64 mi12:34:172:08:346:5422:23
7:12
+0:12
20M
20.00 mi12:44:082:18:256:559:51
7:15
+0:03
21M
21.00 mi12:51:452:26:026:577:37
7:37
+0:22
35K
21.75 mi12:56:472:31:046:575:02
6:44
-0:53
23M
23.00 mi13:05:522:40:096:589:05
7:15
+0:31
24M
24.00 mi13:13:052:47:226:587:13
7:13
-0:02
40K
24.85 mi13:19:202:53:376:596:15
7:19
+0:06
25.2M
25.20 mi13:22:062:56:237:002:46
8:01
+0:42
Finish
26.22 mi13:29:103:03:277:007:04
6:56
-1:05

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

6:43 /mi

Average Pace

7:00 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:04

94% of race

Time at Steady Pace

7:37

4% of race

Time at Slower Pace

2:46

2% of race

Average Pace: 7:00 /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 mi10:47:0721:246:5321:24
6:53
#6957
10K
6.21 mi11:08:0042:176:4820:53
6:43
#6343
15K
9.32 mi11:29:021:03:196:4821:02
6:46
#6121
20K
12.43 mi11:50:211:24:386:4921:19
6:52
#6030
Half
13.11 mi11:54:561:29:136:484:35
6:43
#5998
25K
15.53 mi12:11:541:46:116:5016:58
7:00
#6026
30K
18.64 mi12:34:172:08:346:5422:23
7:12
#5955
20M
20.00 mi12:44:082:18:256:559:51
7:15
#5876
21M
21.00 mi12:51:452:26:026:577:37
7:37
#5775
35K
21.75 mi12:56:472:31:046:575:02
6:44
#5679
23M
23.00 mi13:05:522:40:096:589:05
7:15
#5572
24M
24.00 mi13:13:052:47:226:587:13
7:13
#5528
40K
24.85 mi13:19:202:53:376:596:15
7:19
#5485
25.2M
25.20 mi13:22:062:56:237:002:46
8:01
#5459
Finish
26.22 mi13:29:103:03:277:007:04
6:56
#5408
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6957626762675781(Top 20%)5270(Top 33%)5270(Top 264%)
10K6.21 mi3.10 mi6343+6145796+4715796+4715540(Top 20%)5101(Top 32%)5101(Top 256%)
15K9.32 mi3.11 mi6121+2225604+1925604+1925781(Top 20%)5270(Top 33%)5270(Top 264%)
20K12.43 mi3.11 mi6030+915507+975507+975879(Top 21%)5339(Top 33%)5339(Top 267%)
Half13.11 mi0.68 mi5998+325481+265481+265475(Top 19%)5030(Top 31%)5030(Top 252%)
25K15.53 mi2.42 mi6026-28548154816315(Top 22%)5629(Top 35%)5629(Top 282%)
30K18.64 mi3.11 mi5955+715406+755406+755925(Top 21%)5260(Top 33%)5260(Top 264%)
20M20.00 mi1.36 mi5876+795324+825324+825491(Top 19%)4841(Top 30%)4841(Top 243%)
21M21.00 mi1.00 mi5775+1015241+835241+835219(Top 18%)4540(Top 28%)4540(Top 227%)
35K21.75 mi0.75 mi5679+965159+825159+823725(Top 13%)3372(Top 21%)3372(Top 169%)
23M23.00 mi1.25 mi5572+1075052+1075052+1075213(Top 18%)4464(Top 28%)4464(Top 224%)
24M24.00 mi1.00 mi5528+445001+515001+515917(Top 21%)4865(Top 30%)4865(Top 244%)
40K24.85 mi0.85 mi5485+434957+444957+445701(Top 20%)4675(Top 29%)4675(Top 234%)
25.2M25.20 mi0.35 mi5459+264927+304927+306039(Top 21%)4765(Top 30%)4765(Top 239%)
Finish26.22 mi1.02 mi5408+514875+524875+525311(Top 19%)4322(Top 27%)4322(Top 217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5781

Males

5270

M50-54

5270

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5540

Males

5101

M50-54

5101

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5781

Males

5270

M50-54

5270

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5879

Males

5339

M50-54

5339

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5475

Males

5030

M50-54

5030

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6315

Males

5629

M50-54

5629

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5925

Males

5260

M50-54

5260

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5491

Males

4841

M50-54

4841

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

5219

Males

4540

M50-54

4540

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3725

Males

3372

M50-54

3372

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5213

Males

4464

M50-54

4464

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5917

Males

4865

M50-54

4865

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5701

Males

4675

M50-54

4675

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

6039

Males

4765

M50-54

4765

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5311

Males

4322

M50-54

4322

Passing Analysis

Category:
Athletes Passed
2196
Passed By
647
Net Change
+1549
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6957
5K → 10K63622+614#6957#6343
10K → 15K27856+222#6343#6121
15K → 20K18695+91#6121#6030
20K → Half408+32#6030#5998
Half → 25K119147-28#5998#6026
25K → 30K222151+71#6026#5955
30K → 20M11132+79#5955#5876
20M → 21M11716+101#5876#5775
21M → 35K993+96#5775#5679
35K → 23M13326+107#5679#5572
23M → 24M7733+44#5572#5528
24M → 40K6724+43#5528#5485
40K → 25.2M4317+26#5485#5459
25.2M → Finish6817+51#5459#5408
TOTALS2196647+1549
📊

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