Boston Marathon logo
BOSTON MARATHON 2025

Randy Griffin

Bib: 5346•M

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:28
Rank: #2226
Start → 5K
6:16/mi
19:28 split
10K· 6.21 mi
39:09
Rank: #2414 (-188)
5K → 10K
6:20/mi
19:41 split
15K· 9.32 mi
59:07
Rank: #2658 (-244)
10K → 15K
6:26/mi
19:58 split
20K· 12.43 mi
1:19:36
Rank: #2888 (-230)
15K → 20K
6:36/mi
20:29 split
Half· 13.11 mi
1:24:06
Rank: #2960 (-72)
20K → Half
6:36/mi
4:30 split
25K· 15.53 mi
1:40:52
Rank: #3326 (-366)
Half → 25K
6:55/mi
16:46 split
30K· 18.64 mi
2:04:22
Rank: #4097 (-771)
25K → 30K
7:34/mi
23:30 split
20M
2:15:24
Rank: #4696 (-599)
30K → 20M
8:07/mi
11:02 split
21M
2:23:17
Rank: #4797 (-101)
20M → 21M
7:53/mi
7:53 split
35K· 21.75 mi
2:28:28
Rank: #4774 (+23)
21M → 35K
6:56/mi
5:11 split
23M
2:38:02
Rank: #4975 (-201)
35K → 23M
7:38/mi
9:34 split
24M
2:45:22
Rank: #5052 (-77)
23M → 24M
7:20/mi
7:20 split
40K· 24.85 mi
2:51:58
Rank: #5129 (-77)
24M → 40K
7:43/mi
6:36 split
25.2M
2:54:38
Rank: #5092 (+37)
40K → 25.2M
7:44/mi
2:40 split
Finish· 26.22 mi
3:01:49
Rank: #5075 (+17)
25.2M → Finish
7:03/mi
7:11 split

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:06
Pace6:25 /mi
2nd Half
Distance13.11 mi
Time1:37:43
Pace7:27 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4019:286:1619:28
6:16
-
10K
6.21 mi10:42:2139:096:1819:41
6:20
+0:04
15K
9.32 mi11:02:1959:076:2119:58
6:26
+0:06
20K
12.43 mi11:22:481:19:366:2420:29
6:36
+0:10
Half
13.11 mi11:27:181:24:066:254:30
6:36
0:00
25K
15.53 mi11:44:041:40:526:3016:46
6:55
+0:19
30K
18.64 mi12:07:342:04:226:4023:30
7:34
+0:39
20M
20.00 mi12:18:362:15:246:4611:02
8:07
+0:33
21M
21.00 mi12:26:292:23:176:497:53
7:53
-0:14
35K
21.75 mi12:31:402:28:286:505:11
6:56
-0:57
23M
23.00 mi12:41:142:38:026:529:34
7:38
+0:42
24M
24.00 mi12:48:342:45:226:537:20
7:20
-0:18
40K
24.85 mi12:55:102:51:586:556:36
7:43
+0:23
25.2M
25.20 mi12:57:502:54:386:562:40
7:44
+0:01
Finish
26.22 mi13:05:013:01:496:567:11
7:03
-0:41

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

6:16 /mi

Average Pace

6:56 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:06

46% of race

Time at Steady Pace

36:28

20% of race

Time at Slower Pace

1:01:15

34% of race

Average Pace: 6:56 /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 mi10:22:4019:286:1619:28
6:16
#2226
10K
6.21 mi10:42:2139:096:1819:41
6:20
#2414
15K
9.32 mi11:02:1959:076:2119:58
6:26
#2658
20K
12.43 mi11:22:481:19:366:2420:29
6:36
#2888
Half
13.11 mi11:27:181:24:066:254:30
6:36
#2960
25K
15.53 mi11:44:041:40:526:3016:46
6:55
#3326
30K
18.64 mi12:07:342:04:226:4023:30
7:34
#4097
20M
20.00 mi12:18:362:15:246:4611:02
8:07
#4696
21M
21.00 mi12:26:292:23:176:497:53
7:53
#4797
35K
21.75 mi12:31:402:28:286:505:11
6:56
#4774
23M
23.00 mi12:41:142:38:026:529:34
7:38
#4975
24M
24.00 mi12:48:342:45:226:537:20
7:20
#5052
40K
24.85 mi12:55:102:51:586:556:36
7:43
#5129
25.2M
25.20 mi12:57:502:54:386:562:40
7:44
#5092
Finish
26.22 mi13:05:013:01:496:567:11
7:03
#5075
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2226212621263099(Top 11%)2951(Top 18%)2951(Top 52%)
10K6.21 mi3.10 mi2414-1882301-1752301-1752649(Top 9%)2526(Top 16%)2526(Top 45%)
15K9.32 mi3.11 mi2658-2442534-2332534-2333099(Top 11%)2951(Top 18%)2951(Top 52%)
20K12.43 mi3.11 mi2888-2302755-2212755-2213648(Top 13%)3445(Top 21%)3445(Top 61%)
Half13.11 mi0.68 mi2960-722821-662821-664353(Top 15%)4075(Top 25%)4075(Top 72%)
25K15.53 mi2.42 mi3326-3663162-3413162-3415759(Top 20%)5203(Top 32%)5203(Top 92%)
30K18.64 mi3.11 mi4097-7713842-6803842-6808155(Top 29%)6672(Top 41%)6672(Top 118%)
20M20.00 mi1.36 mi4696-5994352-5104352-51011206(Top 39%)8125(Top 50%)8125(Top 144%)
21M21.00 mi1.00 mi4797-1014432-804432-806639(Top 23%)5450(Top 34%)5450(Top 97%)
35K21.75 mi0.75 mi4774+234401+314401+314889(Top 17%)4301(Top 27%)4301(Top 76%)
23M23.00 mi1.25 mi4975-2014560-1594560-1597481(Top 26%)5850(Top 36%)5850(Top 104%)
24M24.00 mi1.00 mi5052-774616-564616-566567(Top 23%)5261(Top 33%)5261(Top 93%)
40K24.85 mi0.85 mi5129-774666-504666-508160(Top 29%)6059(Top 38%)6059(Top 107%)
25.2M25.20 mi0.35 mi5092+374635+314635+314457(Top 16%)3735(Top 23%)3735(Top 66%)
Finish26.22 mi1.02 mi5075+174609+264609+266027(Top 21%)4735(Top 29%)4735(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

3099

Males

2951

M18-39

2951

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2649

Males

2526

M18-39

2526

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

3099

Males

2951

M18-39

2951

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3648

Males

3445

M18-39

3445

20K→Half

12.4 - 13.1 mi

Top 15%
×2story building
+19ft-37ft

Overall

4353

Males

4075

M18-39

4075

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5759

Males

5203

M18-39

5203

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8155

Males

6672

M18-39

6672

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11206

Males

8125

M18-39

8125

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6639

Males

5450

M18-39

5450

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4889

Males

4301

M18-39

4301

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7481

Males

5850

M18-39

5850

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6567

Males

5261

M18-39

5261

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8160

Males

6059

M18-39

6059

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4457

Males

3735

M18-39

3735

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

6027

Males

4735

M18-39

4735

Passing Analysis

Category:
Athletes Passed
439
Passed By
3288
Net Change
-2849
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2226
5K → 10K42230-188#2226#2414
10K → 15K28272-244#2414#2658
15K → 20K25255-230#2658#2888
20K → Half476-72#2888#2960
Half → 25K14380-366#2960#3326
25K → 30K18789-771#3326#4097
30K → 20M7606-599#4097#4696
20M → 21M37138-101#4696#4797
21M → 35K6037+23#4797#4774
35K → 23M40241-201#4774#4975
23M → 24M38115-77#4975#5052
24M → 40K33110-77#5052#5129
40K → 25.2M458+37#5129#5092
25.2M → Finish4831+17#5092#5075
TOTALS4393288-2849
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing