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BOSTON MARATHON 2025

Marty Pierce

Bib: 31397•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
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
22:54
Rank: #11032
Start → 5K
22:54 | 7:22/mi
10K· 6.21 mi
43:34
Rank: #7928 (+3104)
5K → 10K
20:40 | 6:39/mi
15K· 9.32 mi
1:05:10
Rank: #7700 (+228)
10K → 15K
21:36 | 6:57/mi
20K· 12.43 mi
1:27:41
Rank: #7858 (-158)
15K → 20K
22:31 | 7:15/mi
Half· 13.11 mi
1:32:21
Rank: #7783 (+75)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:49:28
Rank: #7564 (+219)
Half → 25K
17:07 | 7:04/mi
30K· 18.64 mi
2:11:36
Rank: #7069 (+495)
25K → 30K
22:08 | 7:07/mi
20M
2:21:27
Rank: #6847 (+222)
30K → 20M
9:51 | 7:15/mi
21M
2:28:59
Rank: #6662 (+185)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:33:58
Rank: #6501 (+161)
21M → 35K
4:59 | 6:40/mi
23M
2:42:39
Rank: #6249 (+252)
35K → 23M
8:41 | 6:56/mi
24M
2:49:59
Rank: #6204 (+45)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
2:56:42
Rank: #6252 (-48)
24M → 40K
6:43 | 7:51/mi
25.2M
2:59:18
Rank: #6181 (+71)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:06:34
Rank: #6145 (+36)
25.2M → Finish
7:16 | 7:08/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:21
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:34:13
Pace7:11 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4522:547:2222:54
7:22
-
10K
6.21 mi12:06:2543:347:0120:40
6:39
-0:43
15K
9.32 mi12:28:011:05:107:0021:36
6:57
+0:18
20K
12.43 mi12:50:321:27:417:0322:31
7:15
+0:18
Half
13.11 mi12:55:121:32:217:034:40
6:50
-0:25
25K
15.53 mi13:12:191:49:287:0317:07
7:04
+0:14
30K
18.64 mi13:34:272:11:367:0422:08
7:07
+0:03
20M
20.00 mi13:44:182:21:277:049:51
7:15
+0:08
21M
21.00 mi13:51:502:28:597:067:32
7:32
+0:17
35K
21.75 mi13:56:492:33:587:054:59
6:40
-0:52
23M
23.00 mi14:05:302:42:397:048:41
6:56
+0:16
24M
24.00 mi14:12:502:49:597:057:20
7:20
+0:24
40K
24.85 mi14:19:332:56:427:076:43
7:51
+0:31
25.2M
25.20 mi14:22:092:59:187:072:36
7:32
-0:19
Finish
26.22 mi14:29:253:06:347:077:16
7:08
-0:24

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

6:39 /mi

Average Pace

7:07 /mi

Slowest Pace

7:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:29

75% of race

Time at Steady Pace

40:22

22% of race

Time at Slower Pace

6:43

4% 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 mi11:45:4522:547:2222:54
7:22
#11032
10K
6.21 mi12:06:2543:347:0120:40
6:39
#7928
15K
9.32 mi12:28:011:05:107:0021:36
6:57
#7700
20K
12.43 mi12:50:321:27:417:0322:31
7:15
#7858
Half
13.11 mi12:55:121:32:217:034:40
6:50
#7783
25K
15.53 mi13:12:191:49:287:0317:07
7:04
#7564
30K
18.64 mi13:34:272:11:367:0422:08
7:07
#7069
20M
20.00 mi13:44:182:21:277:049:51
7:15
#6847
21M
21.00 mi13:51:502:28:597:067:32
7:32
#6662
35K
21.75 mi13:56:492:33:587:054:59
6:40
#6501
23M
23.00 mi14:05:302:42:397:048:41
6:56
#6249
24M
24.00 mi14:12:502:49:597:057:20
7:20
#6204
40K
24.85 mi14:19:332:56:427:076:43
7:51
#6252
25.2M
25.20 mi14:22:092:59:187:072:36
7:32
#6181
Finish
26.22 mi14:29:253:06:347:077:16
7:08
#6145
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi11032870087007303(Top 26%)6474(Top 40%)6474(Top 115%)
10K6.21 mi3.10 mi7928+31046933+17676933+17674889(Top 17%)4565(Top 28%)4565(Top 81%)
15K9.32 mi3.11 mi7700+2286776+1576776+1577303(Top 26%)6474(Top 40%)6474(Top 115%)
20K12.43 mi3.11 mi7858-1586866-906866-908575(Top 30%)7204(Top 45%)7204(Top 128%)
Half13.11 mi0.68 mi7783+756817+496817+496423(Top 23%)5763(Top 36%)5763(Top 102%)
25K15.53 mi2.42 mi7564+2196650+1676650+1676688(Top 24%)5889(Top 37%)5889(Top 104%)
30K18.64 mi3.11 mi7069+4956260+3906260+3905445(Top 19%)4892(Top 30%)4892(Top 87%)
20M20.00 mi1.36 mi6847+2226068+1926068+1925479(Top 19%)4829(Top 30%)4829(Top 86%)
21M21.00 mi1.00 mi6662+1855909+1595909+1594770(Top 17%)4204(Top 26%)4204(Top 75%)
35K21.75 mi0.75 mi6501+1615778+1315778+1313290(Top 12%)3006(Top 19%)3006(Top 53%)
23M23.00 mi1.25 mi6249+2525567+2115567+2113409(Top 12%)3097(Top 19%)3097(Top 55%)
24M24.00 mi1.00 mi6204+455519+485519+486578(Top 23%)5272(Top 33%)5272(Top 93%)
40K24.85 mi0.85 mi6252-485531-125531-129121(Top 32%)6568(Top 41%)6568(Top 116%)
25.2M25.20 mi0.35 mi6181+715469+625469+623568(Top 13%)3112(Top 19%)3112(Top 55%)
Finish26.22 mi1.02 mi6145+365421+485421+486539(Top 23%)5051(Top 31%)5051(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7303

Males

6474

M18-39

6474

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4889

Males

4565

M18-39

4565

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7303

Males

6474

M18-39

6474

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8575

Males

7204

M18-39

7204

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6423

Males

5763

M18-39

5763

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6688

Males

5889

M18-39

5889

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5445

Males

4892

M18-39

4892

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5479

Males

4829

M18-39

4829

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4770

Males

4204

M18-39

4204

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3290

Males

3006

M18-39

3006

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3409

Males

3097

M18-39

3097

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6578

Males

5272

M18-39

5272

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9121

Males

6568

M18-39

6568

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3568

Males

3112

M18-39

3112

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6539

Males

5051

M18-39

5051

Passing Analysis

Category:
Athletes Passed
5402*
Passed By
515
Net Change
+4887
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11032
5K → 10K3105*1+3104#11032#7928
10K → 15K26941+228#7928#7700
15K → 20K86244-158#7700#7858
20K → Half794+75#7858#7783
Half → 25K24324+219#7783#7564
25K → 30K5016+495#7564#7069
30K → 20M23715+222#7069#6847
20M → 21M1916+185#6847#6662
21M → 35K1621+161#6662#6501
35K → 23M2553+252#6501#6249
23M → 24M8035+45#6249#6204
24M → 40K4088-48#6204#6252
40K → 25.2M721+71#6252#6181
25.2M → Finish8246+36#6181#6145
TOTALS5402*515+4887

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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