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BOSTON MARATHON 2025

Matthew Masi-Phelps

Bib: 3025•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 21%
Gender (Male)
#0 / 16105
Top 33%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:15
Rank: #6620
Start → 5K
21:15 | 6:50/mi
10K· 6.21 mi
44:00
Rank: #8507 (-1887)
5K → 10K
22:45 | 7:19/mi
15K· 9.32 mi
1:06:19
Rank: #8605 (-98)
10K → 15K
22:19 | 7:11/mi
20K· 12.43 mi
1:29:05
Rank: #8706 (-101)
15K → 20K
22:46 | 7:20/mi
Half· 13.11 mi
1:33:42
Rank: #8507 (+199)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:50:31
Rank: #8024 (+483)
Half → 25K
16:49 | 6:56/mi
30K· 18.64 mi
2:11:41
Rank: #7108 (+916)
25K → 30K
21:10 | 6:49/mi
20M
2:20:56
Rank: #6690 (+418)
30K → 20M
9:15 | 6:48/mi
21M
2:27:51
Rank: #6326 (+364)
20M → 21M
6:55 | 6:55/mi
35K· 21.75 mi
2:32:47
Rank: #6179 (+147)
21M → 35K
4:56 | 6:36/mi
23M
2:42:04
Rank: #6092 (+87)
35K → 23M
9:17 | 7:25/mi
24M
2:49:43
Rank: #6136 (-44)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
2:56:25
Rank: #6180 (-44)
24M → 40K
6:42 | 7:50/mi
25.2M
2:59:18
Rank: #6179 (+1)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:06:25
Rank: #6104 (+75)
25.2M → Finish
7:07 | 6:59/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:33:42
Pace7:09 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:32:43
Pace7:04 /mi
📊Negative Split: 1.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5721:156:5021:15
6:50
-
10K
6.21 mi10:45:4244:007:0522:45
7:19
+0:29
15K
9.32 mi11:08:011:06:197:0722:19
7:11
-0:08
20K
12.43 mi11:30:471:29:057:1022:46
7:20
+0:09
Half
13.11 mi11:35:241:33:427:094:37
6:46
-0:34
25K
15.53 mi11:52:131:50:317:0716:49
6:56
+0:10
30K
18.64 mi12:13:232:11:417:0421:10
6:49
-0:07
20M
20.00 mi12:22:382:20:567:039:15
6:48
-0:01
21M
21.00 mi12:29:332:27:517:026:55
6:55
+0:07
35K
21.75 mi12:34:292:32:477:024:56
6:36
-0:19
23M
23.00 mi12:43:462:42:047:039:17
7:25
+0:49
24M
24.00 mi12:51:252:49:437:047:39
7:39
+0:14
40K
24.85 mi12:58:072:56:257:066:42
7:50
+0:11
25.2M
25.20 mi13:01:002:59:187:072:53
8:22
+0:32
Finish
26.22 mi13:08:073:06:257:077:07
6:59
-1:23

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

6:36 /mi

Average Pace

7:07 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:56

3% of race

Time at Steady Pace

1:49:27

59% of race

Time at Slower Pace

1:12:02

39% of race

Average Pace: 7:07 /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 mi10:22:5721:156:5021:15
6:50
#6620
10K
6.21 mi10:45:4244:007:0522:45
7:19
#8507
15K
9.32 mi11:08:011:06:197:0722:19
7:11
#8605
20K
12.43 mi11:30:471:29:057:1022:46
7:20
#8706
Half
13.11 mi11:35:241:33:427:094:37
6:46
#8507
25K
15.53 mi11:52:131:50:317:0716:49
6:56
#8024
30K
18.64 mi12:13:232:11:417:0421:10
6:49
#7108
20M
20.00 mi12:22:382:20:567:039:15
6:48
#6690
21M
21.00 mi12:29:332:27:517:026:55
6:55
#6326
35K
21.75 mi12:34:292:32:477:024:56
6:36
#6179
23M
23.00 mi12:43:462:42:047:039:17
7:25
#6092
24M
24.00 mi12:51:252:49:437:047:39
7:39
#6136
40K
24.85 mi12:58:072:56:257:066:42
7:50
#6180
25.2M
25.20 mi13:01:002:59:187:072:53
8:22
#6179
Finish
26.22 mi13:08:073:06:257:077:07
6:59
#6104
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6620600960098958(Top 32%)7518(Top 47%)7518(Top 133%)
10K6.21 mi3.10 mi8507-18877296-12877296-128710510(Top 37%)8410(Top 52%)8410(Top 149%)
15K9.32 mi3.11 mi8605-987346-507346-508958(Top 32%)7518(Top 47%)7518(Top 133%)
20K12.43 mi3.11 mi8706-1017384-387384-389247(Top 33%)7587(Top 47%)7587(Top 134%)
Half13.11 mi0.68 mi8507+1997262+1227262+1225798(Top 20%)5285(Top 33%)5285(Top 94%)
25K15.53 mi2.42 mi8024+4836940+3226940+3225883(Top 21%)5302(Top 33%)5302(Top 94%)
30K18.64 mi3.11 mi7108+9166289+6516289+6513529(Top 12%)3277(Top 20%)3277(Top 58%)
20M20.00 mi1.36 mi6690+4185953+3365953+3362968(Top 10%)2767(Top 17%)2767(Top 49%)
21M21.00 mi1.00 mi6326+3645665+2885665+2881945(Top 7%)1834(Top 11%)1834(Top 33%)
35K21.75 mi0.75 mi6179+1475538+1275538+1272932(Top 10%)2704(Top 17%)2704(Top 48%)
23M23.00 mi1.25 mi6092+875449+895449+896115(Top 22%)5031(Top 31%)5031(Top 89%)
24M24.00 mi1.00 mi6136-445469-205469-208722(Top 31%)6489(Top 40%)6489(Top 115%)
40K24.85 mi0.85 mi6180-445479-105479-108964(Top 32%)6488(Top 40%)6488(Top 115%)
25.2M25.20 mi0.35 mi6179+15467+125467+127876(Top 28%)5817(Top 36%)5817(Top 103%)
Finish26.22 mi1.02 mi6104+755389+785389+785606(Top 20%)4477(Top 28%)4477(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8958

Males

7518

M18-39

7518

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

10510

Males

8410

M18-39

8410

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8958

Males

7518

M18-39

7518

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

9247

Males

7587

M18-39

7587

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5798

Males

5285

M18-39

5285

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5883

Males

5302

M18-39

5302

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3529

Males

3277

M18-39

3277

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2968

Males

2767

M18-39

2767

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1945

Males

1834

M18-39

1834

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2932

Males

2704

M18-39

2704

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6115

Males

5031

M18-39

5031

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8722

Males

6489

M18-39

6489

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8964

Males

6488

M18-39

6488

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7876

Males

5817

M18-39

5817

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5606

Males

4477

M18-39

4477

Passing Analysis

Category:
Athletes Passed
3154
Passed By
2638
Net Change
+516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6620
5K → 10K81895-1887#6620#8507
10K → 15K129227-98#8507#8605
15K → 20K144245-101#8605#8706
20K → Half1990+199#8706#8507
Half → 25K4852+483#8507#8024
25K → 30K9160+916#8024#7108
30K → 20M4180+418#7108#6690
20M → 21M3640+364#6690#6326
21M → 35K1470+147#6326#6179
35K → 23M12639+87#6179#6092
23M → 24M4387-44#6092#6136
24M → 40K4084-44#6136#6180
40K → 25.2M3130+1#6180#6179
25.2M → Finish10429+75#6179#6104
TOTALS31542638+516
📊

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