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BOSTON MARATHON 2025

David Ewers

Bib: 11770•M

KS

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:13/mi
25:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:46
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:16:17
↑ 67↓ 78
20K· 12.43 mi
8:25/mi
1:42:27
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:48:07
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:08:16
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:35:27
↑ 181↓ 1480.2%
20M
8:38/mi
2:47:11
↑ 64↓ 500.2%
21M
9:07/mi
2:56:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:20/mi
3:02:32
↑ 17↓ 861.7%
23M
8:25/mi
3:13:04
↑ 23↓ 630.6%
24M
8:34/mi
3:21:38
↓ 821.3%
40K· 24.85 mi
8:31/mi
3:28:55
↓ 200.3%
25.2M
9:37/mi
3:32:14
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
3:40:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:07
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:52:20
Pace8:34 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5925:328:1325:32
8:13
-
10K
6.21 mi11:17:1350:468:1025:14
8:07
-0:06
15K
9.32 mi11:42:441:16:178:1125:31
8:13
+0:06
20K
12.43 mi12:08:541:42:278:1526:10
8:25
+0:12
Half
13.11 mi12:14:341:48:078:155:40
8:18
-0:07
25K
15.53 mi12:34:432:08:168:1520:09
8:19
+0:01
30K
18.64 mi13:01:542:35:278:2027:11
8:45
+0:26
20M
20.00 mi13:13:382:47:118:2211:44
8:38
-0:07
21M
21.00 mi13:22:452:56:188:249:07
9:07
+0:29
35K
21.75 mi13:28:593:02:328:246:14
8:20
-0:47
23M
23.00 mi13:39:313:13:048:2410:32
8:25
+0:05
24M
24.00 mi13:48:053:21:388:248:34
8:34
+0:09
40K
24.85 mi13:55:223:28:558:247:17
8:31
-0:03
25.2M
25.20 mi13:58:413:32:148:253:19
9:37
+1:06
Finish
26.22 mi14:06:543:40:278:258:13
8:04
-1:33

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

8:04 /mi

Average Pace

8:25 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28:01

94% of race

Time at Steady Pace

9:07

4% of race

Time at Slower Pace

3:19

2% of race

Average Pace: 8:24 /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 mi10:51:5925:328:1325:32
8:13
#18229
10K
6.21 mi11:17:1350:468:1025:14
8:07
#17761
15K
9.32 mi11:42:441:16:178:1125:31
8:13
#17658
20K
12.43 mi12:08:541:42:278:1526:10
8:25
#17634
Half
13.11 mi12:14:341:48:078:155:40
8:18
#17646
25K
15.53 mi12:34:432:08:168:1520:09
8:19
#17318
30K
18.64 mi13:01:542:35:278:2027:11
8:45
#17075
20M
20.00 mi13:13:382:47:118:2211:44
8:38
#16878
21M
21.00 mi13:22:452:56:188:249:07
9:07
#16671
35K
21.75 mi13:28:593:02:328:246:14
8:20
#16565
23M
23.00 mi13:39:313:13:048:2410:32
8:25
#16293
24M
24.00 mi13:48:053:21:388:248:34
8:34
#16206
40K
24.85 mi13:55:223:28:558:247:17
8:31
#16110
25.2M
25.20 mi13:58:413:32:148:253:19
9:37
#16082
Finish
26.22 mi14:06:543:40:278:258:13
8:04
#15980
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi18229116951169517455(Top 61%)11416(Top 71%)11416(Top 478%)
10K6.21 mi3.10 mi17761+46811529+16611529+16617352(Top 61%)11391(Top 71%)11391(Top 477%)
15K9.32 mi3.11 mi17658+10311488+4111488+4117455(Top 61%)11416(Top 71%)11416(Top 478%)
20K12.43 mi3.11 mi17634+2411465+2311465+2317676(Top 62%)11471(Top 71%)11471(Top 481%)
Half13.11 mi0.68 mi17646-1211474-911474-917908(Top 63%)11578(Top 72%)11578(Top 485%)
25K15.53 mi2.42 mi17318+32811316+15811316+15815976(Top 56%)10634(Top 66%)10634(Top 446%)
30K18.64 mi3.11 mi17075+24311161+15511161+15516280(Top 57%)10613(Top 66%)10613(Top 445%)
20M20.00 mi1.36 mi16878+19711059+10211059+10214628(Top 51%)9751(Top 61%)9751(Top 409%)
21M21.00 mi1.00 mi16671+20710939+12010939+12014185(Top 50%)9422(Top 59%)9422(Top 395%)
35K21.75 mi0.75 mi16565+10610876+6310876+6314460(Top 51%)9492(Top 59%)9492(Top 398%)
23M23.00 mi1.25 mi16293+27210736+14010736+14012772(Top 45%)8599(Top 53%)8599(Top 360%)
24M24.00 mi1.00 mi16206+8710661+7510661+7514921(Top 53%)9548(Top 59%)9548(Top 400%)
40K24.85 mi0.85 mi16110+9610601+6010601+6013547(Top 48%)8791(Top 55%)8791(Top 368%)
25.2M25.20 mi0.35 mi16082+2810583+1810583+1815143(Top 53%)9482(Top 59%)9482(Top 397%)
Finish26.22 mi1.02 mi15980+10210517+6610517+6613305(Top 47%)8671(Top 54%)8671(Top 363%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17455

Males

11416

M45-49

11416

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17352

Males

11391

M45-49

11391

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17455

Males

11416

M45-49

11416

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17676

Males

11471

M45-49

11471

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17908

Males

11578

M45-49

11578

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15976

Males

10634

M45-49

10634

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16280

Males

10613

M45-49

10613

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14628

Males

9751

M45-49

9751

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14185

Males

9422

M45-49

9422

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14460

Males

9492

M45-49

9492

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12772

Males

8599

M45-49

8599

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14921

Males

9548

M45-49

9548

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13547

Males

8791

M45-49

8791

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15143

Males

9482

M45-49

9482

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13305

Males

8671

M45-49

8671

Passing Analysis

Category:
Athletes Passed
2981
Passed By
732
Net Change
+2249
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18229
5K → 10K572104+468#18229#17761
10K → 15K241138+103#17761#17658
15K → 20K204180+24#17658#17634
20K → Half3042-12#17634#17646
Half → 25K35022+328#17646#17318
25K → 30K343100+243#17318#17075
30K → 20M20912+197#17075#16878
20M → 21M22619+207#16878#16671
21M → 35K11913+106#16671#16565
35K → 23M28311+272#16565#16293
23M → 24M11831+87#16293#16206
24M → 40K11418+96#16206#16110
40K → 25.2M4921+28#16110#16082
25.2M → Finish12321+102#16082#15980
TOTALS2981732+2249
📊

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