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BOSTON MARATHON 2025

Ernesto Burden

Bib: 8864•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 38%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 40%
Division (M50-54)
#0 / 1996
Top 42%
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
6:49/mi
21:12
↑ 97↓ 3451.5%
10K· 6.21 mi
6:49/mi
42:24
↑ 79↓ 1380.4%
15K· 9.32 mi
6:51/mi
1:03:41
↑ 67↓ 78
20K· 12.43 mi
6:59/mi
1:25:22
↑ 106↓ 860.1%
Half· 13.11 mi
6:58/mi
1:30:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:14/mi
1:47:40
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:12:14
↑ 181↓ 1480.2%
20M
8:09/mi
2:23:19
↑ 64↓ 500.2%
21M
9:28/mi
2:32:47
↑ 106↓ 241.6%
35K· 21.75 mi
9:28/mi
2:39:52
↑ 17↓ 861.7%
23M
9:36/mi
2:51:53
↑ 23↓ 630.6%
24M
9:24/mi
3:01:17
↓ 821.3%
40K· 24.85 mi
9:51/mi
3:09:42
↓ 200.3%
25.2M
9:31/mi
3:12:59
↑ 13↓ 160.2%
Finish· 26.22 mi
9:08/mi
3:22:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:07
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:52:10
Pace8:33 /mi
📊Positive Split: 24.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2421:126:4921:12
6:49
-
10K
6.21 mi11:07:3642:246:4921:12
6:49
0:00
15K
9.32 mi11:28:531:03:416:5021:17
6:51
+0:02
20K
12.43 mi11:50:341:25:226:5221:41
6:59
+0:08
Half
13.11 mi11:55:191:30:076:524:45
6:58
-0:01
25K
15.53 mi12:12:521:47:406:5617:33
7:14
+0:16
30K
18.64 mi12:37:262:12:147:0624:34
7:54
+0:40
20M
20.00 mi12:48:312:23:197:1011:05
8:09
+0:15
21M
21.00 mi12:57:592:32:477:179:28
9:28
+1:19
35K
21.75 mi13:05:042:39:527:217:05
9:28
0:00
23M
23.00 mi13:17:052:51:537:2812:01
9:36
+0:08
24M
24.00 mi13:26:293:01:177:339:24
9:24
-0:12
40K
24.85 mi13:34:543:09:427:388:25
9:51
+0:27
25.2M
25.20 mi13:38:113:12:597:393:17
9:31
-0:20
Finish
26.22 mi13:47:293:22:177:439:18
9:08
-0:23

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

6:49 /mi

Average Pace

7:43 /mi

Slowest Pace

9:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:40

53% of race

Time at Steady Pace

35:39

18% of race

Time at Slower Pace

58:58

29% of race

Average Pace: 7:43 /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 mi10:46:2421:126:4921:12
6:49
#6521
10K
6.21 mi11:07:3642:246:4921:12
6:49
#6526
15K
9.32 mi11:28:531:03:416:5021:17
6:51
#6504
20K
12.43 mi11:50:341:25:226:5221:41
6:59
#6580
Half
13.11 mi11:55:191:30:076:524:45
6:58
#6629
25K
15.53 mi12:12:521:47:406:5617:33
7:14
#6805
30K
18.64 mi12:37:262:12:147:0624:34
7:54
#7310
20M
20.00 mi12:48:312:23:197:1011:05
8:09
#7497
21M
21.00 mi12:57:592:32:477:179:28
9:28
#7931
35K
21.75 mi13:05:042:39:527:217:05
9:28
#8482
23M
23.00 mi13:17:052:51:537:2812:01
9:36
#9258
24M
24.00 mi13:26:293:01:177:339:24
9:24
#9829
40K
24.85 mi13:34:543:09:427:388:25
9:51
#10340
25.2M
25.20 mi13:38:113:12:597:393:17
9:31
#10405
Finish
26.22 mi13:47:293:22:177:439:18
9:08
#10820
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6521593859386592(Top 23%)5943(Top 37%)5943(Top 298%)
10K6.21 mi3.10 mi6526-55936+25936+26664(Top 23%)6019(Top 37%)6019(Top 302%)
15K9.32 mi3.11 mi6504+225893+435893+436592(Top 23%)5943(Top 37%)5943(Top 298%)
20K12.43 mi3.11 mi6580-765946-535946-536757(Top 24%)6022(Top 37%)6022(Top 302%)
Half13.11 mi0.68 mi6629-495987-415987-417330(Top 26%)6472(Top 40%)6472(Top 324%)
25K15.53 mi2.42 mi6805-1766103-1166103-1167899(Top 28%)6707(Top 42%)6707(Top 336%)
30K18.64 mi3.11 mi7310-5056431-3286431-32810682(Top 38%)8016(Top 50%)8016(Top 402%)
20M20.00 mi1.36 mi7497-1876523-926523-9211485(Top 40%)8274(Top 51%)8274(Top 415%)
21M21.00 mi1.00 mi7931-4346759-2366759-23615900(Top 56%)10195(Top 63%)10195(Top 511%)
35K21.75 mi0.75 mi8482-5517076-3177076-31720186(Top 71%)12049(Top 75%)12049(Top 604%)
23M23.00 mi1.25 mi9258-7767482-4067482-40619057(Top 67%)11463(Top 71%)11463(Top 574%)
24M24.00 mi1.00 mi9829-5717749-2677749-26719202(Top 68%)11495(Top 71%)11495(Top 576%)
40K24.85 mi0.85 mi10340-5117971-2227971-22219923(Top 70%)11757(Top 73%)11757(Top 589%)
25.2M25.20 mi0.35 mi10405-657990-197990-1914615(Top 51%)9208(Top 57%)9208(Top 461%)
Finish26.22 mi1.02 mi10820-4158151-1618151-16119590(Top 69%)11615(Top 72%)11615(Top 582%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6592

Males

5943

M50-54

5943

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6664

Males

6019

M50-54

6019

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6592

Males

5943

M50-54

5943

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6757

Males

6022

M50-54

6022

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

7330

Males

6472

M50-54

6472

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

7899

Males

6707

M50-54

6707

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10682

Males

8016

M50-54

8016

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11485

Males

8274

M50-54

8274

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

15900

Males

10195

M50-54

10195

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20186

Males

12049

M50-54

12049

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19057

Males

11463

M50-54

11463

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

19202

Males

11495

M50-54

11495

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19923

Males

11757

M50-54

11757

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14615

Males

9208

M50-54

9208

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19590

Males

11615

M50-54

11615

Passing Analysis

Category:
Athletes Passed
759
Passed By
5056
Net Change
-4299
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6521
5K → 10K184189-5#6521#6526
10K → 15K167145+22#6526#6504
15K → 20K116192-76#6504#6580
20K → Half1362-49#6580#6629
Half → 25K73249-176#6629#6805
25K → 30K62567-505#6805#7310
30K → 20M59246-187#7310#7497
20M → 21M20454-434#7497#7931
21M → 35K3554-551#7931#8482
35K → 23M15791-776#8482#9258
23M → 24M12583-571#9258#9829
24M → 40K14523-511#9829#10340
40K → 25.2M1378-65#10340#10405
25.2M → Finish8423-415#10405#10820
TOTALS7595056-4299
📊

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