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BOSTON MARATHON 2025

Dustin Bybee

UT

Bib: 68 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 0.4%
Gender (Male)
#0 / 16105
Top 0.6%
Masters (Masters Men)
#0 / 10463
Top 0.1%
Division (M40-44)
#0 / 2247
Top 0.1%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
5:20/mi
16:35
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:28/mi
33:34
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:33/mi
50:48
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
5:40/mi
1:08:24
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
5:36/mi
1:12:13
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
5:28/mi
1:25:28
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
5:36/mi
1:42:51
↑ 181↓ 1480.2%
138 ft elev
20M
5:37/mi
1:50:29
↑ 64↓ 500.2%
148 ft elev
21M
6:05/mi
1:56:34
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
5:17/mi
2:00:31
↑ 17↓ 861.7%
156 ft elev
23M
5:35/mi
2:07:30
↑ 23↓ 630.6%
116 ft elev
24M
5:26/mi
2:12:56
↓ 821.3%
34 ft elev
40K· 24.85 mi
5:29/mi
2:17:37
↓ 200.3%
20 ft elev
25.2M
6:02/mi
2:19:42
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
5:18/mi
2:25:06
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:12:135:31 /mi⚖️ balanced
2nd Half
1:12:535:34 /mi⚖️ balanced
Even split — consistent pacing between halves
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi09:53:3816:355:2016:35
5:20
-
10K
6.21 mi10:10:3733:345:2416:59
5:28
+0:08
15K
9.32 mi10:27:5150:485:2717:14
5:33
+0:05
20K
12.43 mi10:45:271:08:245:3017:36
5:40
+0:07
Half
13.11 mi10:49:161:12:135:313:49
5:36
-0:04
25K
15.53 mi11:02:311:25:285:3013:15
5:28
-0:08
30K
18.64 mi11:19:541:42:515:3117:23
5:36
+0:08
20M
20.00 mi11:27:321:50:295:317:38
5:37
+0:01
21M
21.00 mi11:33:371:56:345:336:05
6:05
+0:28
35K
21.75 mi11:37:342:00:315:323:57
5:17
-0:48
23M
23.00 mi11:44:332:07:305:336:59
5:35
+0:18
24M
24.00 mi11:49:592:12:565:325:26
5:26
-0:09
40K
24.85 mi11:54:402:17:375:324:41
5:29
+0:03
25.2M
25.20 mi11:56:452:19:425:332:05
6:02
+0:33
Finish
26.22 mi12:02:092:25:065:325:24
5:18
-0:44

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

5:17 /mi

Average Pace

5:32 /mi

Slowest Pace

6:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:16:56

94% of race

Time at Steady Pace

8:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:32 /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 mi09:53:3816:355:2016:35
5:20
#86
10K
6.21 mi10:10:3733:345:2416:59
5:28
#133
15K
9.32 mi10:27:5150:485:2717:14
5:33
#140
20K
12.43 mi10:45:271:08:245:3017:36
5:40
#169
Half
13.11 mi10:49:161:12:135:313:49
5:36
#174
25K
15.53 mi11:02:311:25:285:3013:15
5:28
#154
30K
18.64 mi11:19:541:42:515:3117:23
5:36
#139
20M
20.00 mi11:27:321:50:295:317:38
5:37
#131
21M
21.00 mi11:33:371:56:345:336:05
6:05
#130
35K
21.75 mi11:37:342:00:315:323:57
5:17
#127
23M
23.00 mi11:44:332:07:305:336:59
5:35
#120
24M
24.00 mi11:49:592:12:565:325:26
5:26
#114
40K
24.85 mi11:54:402:17:375:324:41
5:29
#111
25.2M
25.20 mi11:56:452:19:425:332:05
6:02
#110
Finish
26.22 mi12:02:092:25:065:325:24
5:18
#102
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi868585194168168
10K6.21 mi3.10 mi133-47112-27112-27181154154
15K9.32 mi3.11 mi140-7118-6118-6194168168
20K12.43 mi3.11 mi169-29144-26144-26272246246
Half13.11 mi0.68 mi174-5149-5149-5280255255
25K15.53 mi2.42 mi154+20131+18131+181069898
30K18.64 mi3.11 mi139+15118+13118+131079999
20M20.00 mi1.36 mi131+8112+6112+6888383
21M21.00 mi1.00 mi130+1110+2110+2173159159
35K21.75 mi0.75 mi127+3108+2108+2615757
23M23.00 mi1.25 mi120+7102+6102+6737070
24M24.00 mi1.00 mi114+697+597+5736969
40K24.85 mi0.85 mi111+395+295+2635858
25.2M25.20 mi0.35 mi110+194+194+1888282
Finish26.22 mi1.02 mi102+889+589+5514848

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.7%
×21story building
+97ft-345ft

Overall

194

Males

168

M40-44

168

5K→10K

3.1 - 6.2 mi

Top 0.6%
×5story building
+79ft-138ft

Overall

181

Males

154

M40-44

154

10K→15K

6.2 - 9.3 mi

Top 0.7%
×3story building
+67ft-78ft

Overall

194

Males

168

M40-44

168

15K→20K

9.3 - 12.4 mi

Top 1.0%
×5story building
+106ft-86ft

Overall

272

Males

246

M40-44

246

20K→Half

12.4 - 13.1 mi

Top 1.0%
×2story building
+19ft-37ft

Overall

280

Males

255

M40-44

255

Half→25K

13.1 - 15.5 mi

Top 0.4%
×4story building
+66ft-88ft

Overall

106

Males

98

M40-44

98

25K→30K

15.5 - 18.6 mi

Top 0.4%
×9story building
+181ft-148ft

Overall

107

Males

99

M40-44

99

30K→20M

18.6 - 20.0 mi

Top 0.3%
×5story building
+64ft-50ft

Overall

88

Males

83

M40-44

83

20M→21M

20.0 - 21.0 mi

Top 0.6%
×8story building
+106ft-24ft

Overall

173

Males

159

M40-44

159

21M→35K

21.0 - 21.8 mi

Top 0.2%
×7story building
+17ft-86ft

Overall

61

Males

57

M40-44

57

35K→23M

21.8 - 23.0 mi

Top 0.3%
×5story building
+23ft-63ft

Overall

73

Males

70

M40-44

70

23M→24M

23.0 - 24.0 mi

Top 0.3%
×6story building
+12ft-82ft

Overall

73

Males

69

M40-44

69

24M→40K

24.0 - 24.9 mi

Top 0.2%
×1story
+6ft-20ft

Overall

63

Males

58

M40-44

58

40K→25.2M

24.9 - 25.2 mi

Top 0.3%
×1story
+13ft-16ft

Overall

88

Males

82

M40-44

82

25.2M→Finish

25.2 - 26.2 mi

Top 0.2%
×2story building
+22ft-21ft

Overall

51

Males

48

M40-44

48

Passing Analysis

Category:
Athletes Passed
86
Passed By
102
Net Change
-16
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#86
5K → 10K047-47#86#133
10K → 15K613-7#133#140
15K → 20K433-29#140#169
20K → Half05-5#169#174
Half → 25K200+20#174#154
25K → 30K161+15#154#139
30K → 20M91+8#139#131
20M → 21M32+1#131#130
21M → 35K30+3#130#127
35K → 23M70+7#127#120
23M → 24M60+6#120#114
24M → 40K30+3#114#111
40K → 25.2M10+1#111#110
25.2M → Finish80+8#110#102
TOTALS86102-16

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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