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BOSTON MARATHON 2025

Cary Guffey

Bib: 11657•M

AL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 37%
Division (M50-54)
#0 / 1996
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:09
Rank: #8877
Start → 5K
22:09 | 7:08/mi
10K· 6.21 mi
44:03
Rank: #8562 (+315)
5K → 10K
21:54 | 7:03/mi
15K· 9.32 mi
1:06:24
Rank: #8692 (-130)
10K → 15K
22:21 | 7:12/mi
20K· 12.43 mi
1:29:33
Rank: #9037 (-345)
15K → 20K
23:09 | 7:27/mi
Half· 13.11 mi
1:34:27
Rank: #9030 (+7)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:53:27
Rank: #9603 (-573)
Half → 25K
19:00 | 7:50/mi
30K· 18.64 mi
2:18:23
Rank: #9905 (-302)
25K → 30K
24:56 | 8:02/mi
20M
2:29:27
Rank: #9976 (-71)
30K → 20M
11:04 | 8:09/mi
21M
2:38:39
Rank: #10280 (-304)
20M → 21M
9:12 | 9:12/mi
35K· 21.75 mi
2:44:08
Rank: #10154 (+126)
21M → 35K
5:29 | 7:20/mi
23M
2:54:30
Rank: #10244 (-90)
35K → 23M
10:22 | 8:17/mi
24M
3:01:57
Rank: #10073 (+171)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:08:41
Rank: #10004 (+69)
24M → 40K
6:44 | 7:53/mi
25.2M
3:11:53
Rank: #10059 (-55)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:19:17
Rank: #9922 (+137)
25.2M → Finish
7:24 | 7:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:27
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:44:50
Pace8:00 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1122:097:0822:09
7:08
-
10K
6.21 mi11:11:0544:037:0521:54
7:03
-0:05
15K
9.32 mi11:33:261:06:247:0722:21
7:12
+0:09
20K
12.43 mi11:56:351:29:337:1223:09
7:27
+0:15
Half
13.11 mi12:01:291:34:277:124:54
7:11
-0:16
25K
15.53 mi12:20:291:53:277:1819:00
7:50
+0:39
30K
18.64 mi12:45:252:18:237:2524:56
8:02
+0:12
20M
20.00 mi12:56:292:29:277:2811:04
8:09
+0:07
21M
21.00 mi13:05:412:38:397:339:12
9:12
+1:03
35K
21.75 mi13:11:102:44:087:335:29
7:20
-1:52
23M
23.00 mi13:21:322:54:307:3510:22
8:17
+0:57
24M
24.00 mi13:28:593:01:577:357:27
7:27
-0:50
40K
24.85 mi13:35:433:08:417:356:44
7:53
+0:26
25.2M
25.20 mi13:38:553:11:537:373:12
9:17
+1:24
Finish
26.22 mi13:46:193:19:177:367:24
7:16
-2:01

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

7:03 /mi

Average Pace

7:36 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

21:54

11% of race

Time at Steady Pace

1:32:53

47% of race

Time at Slower Pace

1:24:30

42% of race

Average Pace: 7:36 /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 mi10:49:1122:097:0822:09
7:08
#8877
10K
6.21 mi11:11:0544:037:0521:54
7:03
#8562
15K
9.32 mi11:33:261:06:247:0722:21
7:12
#8692
20K
12.43 mi11:56:351:29:337:1223:09
7:27
#9037
Half
13.11 mi12:01:291:34:277:124:54
7:11
#9030
25K
15.53 mi12:20:291:53:277:1819:00
7:50
#9603
30K
18.64 mi12:45:252:18:237:2524:56
8:02
#9905
20M
20.00 mi12:56:292:29:277:2811:04
8:09
#9976
21M
21.00 mi13:05:412:38:397:339:12
9:12
#10280
35K
21.75 mi13:11:102:44:087:335:29
7:20
#10154
23M
23.00 mi13:21:322:54:307:3510:22
8:17
#10244
24M
24.00 mi13:28:593:01:577:357:27
7:27
#10073
40K
24.85 mi13:35:433:08:417:356:44
7:53
#10004
25.2M
25.20 mi13:38:553:11:537:373:12
9:17
#10059
Finish
26.22 mi13:46:193:19:177:367:24
7:16
#9922
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8877753675369054(Top 32%)7582(Top 47%)7582(Top 380%)
10K6.21 mi3.10 mi8562+3157330+2067330+2068285(Top 29%)7158(Top 44%)7158(Top 359%)
15K9.32 mi3.11 mi8692-1307404-747404-749054(Top 32%)7582(Top 47%)7582(Top 380%)
20K12.43 mi3.11 mi9037-3457584-1807584-18010341(Top 36%)8185(Top 51%)8185(Top 410%)
Half13.11 mi0.68 mi9030+77577+77577+78917(Top 31%)7439(Top 46%)7439(Top 373%)
25K15.53 mi2.42 mi9603-5737850-2737850-27312608(Top 44%)9114(Top 57%)9114(Top 457%)
30K18.64 mi3.11 mi9905-3027969-1197969-11911563(Top 41%)8458(Top 53%)8458(Top 424%)
20M20.00 mi1.36 mi9976-717974-57974-511400(Top 40%)8229(Top 51%)8229(Top 412%)
21M21.00 mi1.00 mi10280-3048075-1018075-10114588(Top 51%)9599(Top 60%)9599(Top 481%)
35K21.75 mi0.75 mi10154+1267987+887987+887418(Top 26%)5952(Top 37%)5952(Top 298%)
23M23.00 mi1.25 mi10244-907979+87979+811901(Top 42%)8183(Top 51%)8183(Top 410%)
24M24.00 mi1.00 mi10073+1717867+1127867+1127355(Top 26%)5742(Top 36%)5742(Top 288%)
40K24.85 mi0.85 mi10004+697805+627805+629283(Top 33%)6676(Top 41%)6676(Top 334%)
25.2M25.20 mi0.35 mi10059-557809-47809-413270(Top 47%)8576(Top 53%)8576(Top 430%)
Finish26.22 mi1.02 mi9922+1377716+937716+937498(Top 26%)5631(Top 35%)5631(Top 282%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

9054

Males

7582

M50-54

7582

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8285

Males

7158

M50-54

7158

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

9054

Males

7582

M50-54

7582

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10341

Males

8185

M50-54

8185

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8917

Males

7439

M50-54

7439

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12608

Males

9114

M50-54

9114

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11563

Males

8458

M50-54

8458

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

11400

Males

8229

M50-54

8229

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14588

Males

9599

M50-54

9599

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

7418

Males

5952

M50-54

5952

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11901

Males

8183

M50-54

8183

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7355

Males

5742

M50-54

5742

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9283

Males

6676

M50-54

6676

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13270

Males

8576

M50-54

8576

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7498

Males

5631

M50-54

5631

Passing Analysis

Category:
Athletes Passed
1638*
Passed By
2680
Net Change
-1045
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8877
5K → 10K40792+315#8877#8562
10K → 15K113243-130#8562#8692
15K → 20K84429-345#8692#9037
20K → Half3831+7#9037#9030
Half → 25K57630-573#9030#9603
25K → 30K139441-302#9603#9905
30K → 20M93163-71#9905#9976
20M → 21M32334-304#9976#10280
21M → 35K1359+126#10280#10154
35K → 23M78168-90#10154#10244
23M → 24M1809+171#10244#10073
24M → 40K11243+69#10073#10004
40K → 25.2M2378-55#10004#10059
25.2M → Finish147*10+137#10059#9922
TOTALS1638*2680-1045

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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