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BOSTON MARATHON 2025

Tom Clifford

NC

Bib: 734 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 0.5%
Gender (Male)
#0 / 16105
Top 0.8%
Masters (Masters Men)
#0 / 10463
Top 0.1%
Division (M40-44)
#0 / 2247
Top 0.3%
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
5:39/mi
17:33
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
5:33/mi
34:48
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
5:33/mi
52:03
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
5:36/mi
1:09:27
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
5:25/mi
1:13:09
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
5:31/mi
1:26:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
5:40/mi
1:44:06
↑ 181↓ 1480.2%
138 ft elev
20M
5:41/mi
1:51:49
↑ 64↓ 500.2%
148 ft elev
21M
6:04/mi
1:57:53
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
5:33/mi
2:02:02
↑ 17↓ 861.7%
156 ft elev
23M
5:49/mi
2:09:19
↑ 23↓ 630.6%
116 ft elev
24M
5:37/mi
2:14:56
↓ 821.3%
34 ft elev
40K· 24.85 mi
5:43/mi
2:19:49
↓ 200.3%
20 ft elev
25.2M
6:29/mi
2:22:03
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
5:54/mi
2:28:04
↑ 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
1:13:095:35 /mi⚡ faster
2nd Half
1:14:555:43 /mi+2.4%
Positive split — 2.4% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
17:335:393.11 mi17:33
5:39
-
10K
34:485:363.10 mi17:15
5:33
-0:06
15K
52:035:353.11 mi17:15
5:33
0:00
20K
1:09:275:353.11 mi17:24
5:36
+0:03
Half(13.11 mi)
1:13:095:350.68 mi3:42
5:25
-0:11
25K
1:26:315:342.42 mi13:22
5:31
+0:06
30K
1:44:065:353.11 mi17:35
5:40
+0:09
20M
1:51:495:351.36 mi7:43
5:41
+0:01
21M
1:57:535:371.00 mi6:04
6:04
+0:23
35K
2:02:025:370.75 mi4:09
5:33
-0:31
23M
2:09:195:371.25 mi7:17
5:49
+0:16
24M
2:14:565:371.00 mi5:37
5:37
-0:12
40K
2:19:495:380.85 mi4:53
5:43
+0:06
25.2M
2:22:035:380.35 mi2:14
6:29
+0:46
Finish(26.22 mi)
2:28:045:391.02 mi6:01
5:54
-0:35
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

5:25 /mi

Average Pace

5:39 /mi

Slowest Pace

6:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:19:46

94% of race

Time at Steady Pace

6:04

4% of race

Time at Slower Pace

2:14

2% of race

Average Pace: 5:39 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi358325325205179179
10K3.10 mi296+62267+58267+58248219219
15K3.11 mi262+34233+34233+34205179179
20K3.11 mi241+21214+19214+19196173173
Half(13.11 mi)0.68 mi233+8207+7207+7128119119
25K2.42 mi214+19188+19188+19141120120
30K3.11 mi189+25166+22166+22146128128
20M1.36 mi177+12155+11155+11113106106
21M1.00 mi171+6150+5150+5163150150
35K0.75 mi165+6144+6144+6138124124
23M1.25 mi159+6138+6138+6174162162
24M1.00 mi156+3135+3135+3137126126
40K0.85 mi151+5130+5130+5134126126
25.2M0.35 mi149+2128+2128+2392359359
Finish(26.22 mi)1.02 mi149128128676636636

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

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

Overall

205

Males

179

M40-44

179

5K→10K

3.1 - 6.2 mi

Top 0.9%
×5story building
+79ft-138ft

Overall

248

Males

219

M40-44

219

10K→15K

6.2 - 9.3 mi

Top 0.7%
×3story building
+67ft-78ft

Overall

205

Males

179

M40-44

179

15K→20K

9.3 - 12.4 mi

Top 0.7%
×5story building
+106ft-86ft

Overall

196

Males

173

M40-44

173

20K→Half

12.4 - 13.1 mi

Top 0.5%
×2story building
+19ft-37ft

Overall

128

Males

119

M40-44

119

Half→25K

13.1 - 15.5 mi

Top 0.5%
×4story building
+66ft-88ft

Overall

141

Males

120

M40-44

120

25K→30K

15.5 - 18.6 mi

Top 0.5%
×9story building
+181ft-148ft

Overall

146

Males

128

M40-44

128

30K→20M

18.6 - 20.0 mi

Top 0.4%
×5story building
+64ft-50ft

Overall

113

Males

106

M40-44

106

20M→21M

20.0 - 21.0 mi

Top 0.6%
×8story building
+106ft-24ft

Overall

163

Males

150

M40-44

150

21M→35K

21.0 - 21.8 mi

Top 0.5%
×7story building
+17ft-86ft

Overall

138

Males

124

M40-44

124

35K→23M

21.8 - 23.0 mi

Top 0.6%
×5story building
+23ft-63ft

Overall

174

Males

162

M40-44

162

23M→24M

23.0 - 24.0 mi

Top 0.5%
×6story building
+12ft-82ft

Overall

137

Males

126

M40-44

126

24M→40K

24.0 - 24.9 mi

Top 0.5%
×1story
+6ft-20ft

Overall

134

Males

126

M40-44

126

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

392

Males

359

M40-44

359

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

676

Males

636

M40-44

636

Passing Analysis

Category:
Passed
219
Passed By
10
Net Change
+209
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#358
5K → 10K642+62#358#296
10K → 15K340+34#296#262
15K → 20K210+21#262#241
20K → Half80+8#241#233
Half → 25K190+19#233#214
25K → 30K283+25#214#189
30K → 20M120+12#189#177
20M → 21M82+6#177#171
21M → 35K60+6#171#165
35K → 23M60+6#165#159
23M → 24M30+3#159#156
24M → 40K50+5#156#151
40K → 25.2M20+2#151#149
25.2M → Finish330#149#149
TOTALS21910+209

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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