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BOSTON MARATHON 2025

Brandon Nelson

Bib: 12144•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 37%
Masters (Masters Men)
#0 / 10463
Top 23%
Division (M50-54)
#0 / 1996
Top 19%
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
7:20/mi
22:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:20
↑ 79↓ 1380.4%
15K· 9.32 mi
7:08/mi
1:07:29
↑ 67↓ 78
20K· 12.43 mi
7:11/mi
1:29:48
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:34:40
↑ 19↓ 370.5%
25K· 15.53 mi
7:07/mi
1:51:56
↑ 66↓ 880.2%
30K· 18.64 mi
7:19/mi
2:14:39
↑ 181↓ 1480.2%
20M
7:23/mi
2:24:41
↑ 64↓ 500.2%
21M
7:50/mi
2:32:31
↑ 106↓ 241.6%
35K· 21.75 mi
6:58/mi
2:37:44
↑ 17↓ 861.7%
23M
7:04/mi
2:46:35
↑ 23↓ 630.6%
24M
7:03/mi
2:53:38
↓ 821.3%
40K· 24.85 mi
7:07/mi
2:59:43
↓ 200.3%
25.2M
7:41/mi
3:02:22
↑ 13↓ 160.2%
Finish· 26.22 mi
6:44/mi
3:09:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:34:40
Pace7:13 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:34
Pace7:13 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0622:467:2022:46
7:20
-
10K
6.21 mi11:12:4045:207:1822:34
7:16
-0:04
15K
9.32 mi11:34:491:07:297:1422:09
7:08
-0:08
20K
12.43 mi11:57:081:29:487:1422:19
7:11
+0:03
Half
13.11 mi12:02:001:34:407:134:52
7:08
-0:03
25K
15.53 mi12:19:161:51:567:1217:16
7:07
-0:01
30K
18.64 mi12:41:592:14:397:1322:43
7:19
+0:12
20M
20.00 mi12:52:012:24:417:1410:02
7:23
+0:04
21M
21.00 mi12:59:512:32:317:167:50
7:50
+0:27
35K
21.75 mi13:05:042:37:447:155:13
6:58
-0:52
23M
23.00 mi13:13:552:46:357:158:51
7:04
+0:06
24M
24.00 mi13:20:582:53:387:147:03
7:03
-0:01
40K
24.85 mi13:27:032:59:437:146:05
7:07
+0:04
25.2M
25.20 mi13:29:423:02:227:142:39
7:41
+0:34
Finish
26.22 mi13:36:343:09:147:136:52
6:44
-0:57

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

6:44 /mi

Average Pace

7:13 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:45

94% of race

Time at Steady Pace

10:29

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi10:50:0622:467:2022:46
7:20
#10616
10K
6.21 mi11:12:4045:207:1822:34
7:16
#10296
15K
9.32 mi11:34:491:07:297:1422:09
7:08
#9658
20K
12.43 mi11:57:081:29:487:1422:19
7:11
#9206
Half
13.11 mi12:02:001:34:407:134:52
7:08
#9182
25K
15.53 mi12:19:161:51:567:1217:16
7:07
#8720
30K
18.64 mi12:41:592:14:397:1322:43
7:19
#8206
20M
20.00 mi12:52:012:24:417:1410:02
7:23
#8011
21M
21.00 mi12:59:512:32:317:167:50
7:50
#7842
35K
21.75 mi13:05:042:37:447:155:13
6:58
#7695
23M
23.00 mi13:13:552:46:357:158:51
7:04
#7398
24M
24.00 mi13:20:582:53:387:147:03
7:03
#7235
40K
24.85 mi13:27:032:59:437:146:05
7:07
#7096
25.2M
25.20 mi13:29:423:02:227:142:39
7:41
#7024
Finish
26.22 mi13:36:343:09:147:136:52
6:44
#6838
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi10616848884888524(Top 30%)7258(Top 45%)7258(Top 364%)
10K6.21 mi3.10 mi10296+3208314+1748314+17410011(Top 35%)8143(Top 51%)8143(Top 408%)
15K9.32 mi3.11 mi9658+6387954+3607954+3608524(Top 30%)7258(Top 45%)7258(Top 364%)
20K12.43 mi3.11 mi9206+4527675+2797675+2798051(Top 28%)6905(Top 43%)6905(Top 346%)
Half13.11 mi0.68 mi9182+247662+137662+138485(Top 30%)7168(Top 45%)7168(Top 359%)
25K15.53 mi2.42 mi8720+4627371+2917371+2917104(Top 25%)6194(Top 38%)6194(Top 310%)
30K18.64 mi3.11 mi8206+5146997+3746997+3746515(Top 23%)5663(Top 35%)5663(Top 284%)
20M20.00 mi1.36 mi8011+1956840+1576840+1576294(Top 22%)5399(Top 34%)5399(Top 270%)
21M21.00 mi1.00 mi7842+1696705+1356705+1356383(Top 22%)5319(Top 33%)5319(Top 266%)
35K21.75 mi0.75 mi7695+1476594+1116594+1115189(Top 18%)4521(Top 28%)4521(Top 227%)
23M23.00 mi1.25 mi7398+2976356+2386356+2384186(Top 15%)3730(Top 23%)3730(Top 187%)
24M24.00 mi1.00 mi7235+1636219+1376219+1374929(Top 17%)4217(Top 26%)4217(Top 211%)
40K24.85 mi0.85 mi7096+1396097+1226097+1224586(Top 16%)3918(Top 24%)3918(Top 196%)
25.2M25.20 mi0.35 mi7024+726036+616036+614294(Top 15%)3650(Top 23%)3650(Top 183%)
Finish26.22 mi1.02 mi6838+1865890+1465890+1464144(Top 15%)3547(Top 22%)3547(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8524

Males

7258

M50-54

7258

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

10011

Males

8143

M50-54

8143

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8524

Males

7258

M50-54

7258

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

8051

Males

6905

M50-54

6905

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8485

Males

7168

M50-54

7168

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7104

Males

6194

M50-54

6194

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6515

Males

5663

M50-54

5663

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

6294

Males

5399

M50-54

5399

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6383

Males

5319

M50-54

5319

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

5189

Males

4521

M50-54

4521

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

4186

Males

3730

M50-54

3730

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4929

Males

4217

M50-54

4217

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4586

Males

3918

M50-54

3918

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4294

Males

3650

M50-54

3650

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4144

Males

3547

M50-54

3547

Passing Analysis

Category:
Athletes Passed
4024*
Passed By
246
Net Change
+3778
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10616
5K → 10K448128+320#10616#10296
10K → 15K648*10+638#10296#9658
15K → 20K46412+452#9658#9206
20K → Half4723+24#9206#9182
Half → 25K4653+462#9182#8720
25K → 30K52612+514#8720#8206
30K → 20M21015+195#8206#8011
20M → 21M19122+169#8011#7842
21M → 35K1492+147#7842#7695
35K → 23M2992+297#7695#7398
23M → 24M17310+163#7398#7235
24M → 40K1423+139#7235#7096
40K → 25.2M753+72#7096#7024
25.2M → Finish1871+186#7024#6838
TOTALS4024*246+3778

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

📊

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