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BOSTON MARATHON 2025

Ryan Cass

Bib: 3971•M

SC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
20:43
Rank: #5156
Start → 5K
20:43 | 6:40/mi
10K· 6.21 mi
41:24
Rank: #5018 (+138)
5K → 10K
20:41 | 6:39/mi
15K· 9.32 mi
1:02:00
Rank: #4811 (+207)
10K → 15K
20:36 | 6:38/mi
20K· 12.43 mi
1:22:49
Rank: #4678 (+133)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:27:20
Rank: #4655 (+23)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:43:31
Rank: #4496 (+159)
Half → 25K
16:11 | 6:40/mi
30K· 18.64 mi
2:04:54
Rank: #4317 (+179)
25K → 30K
21:23 | 6:53/mi
20M
2:14:25
Rank: #4268 (+49)
30K → 20M
9:31 | 7:00/mi
21M
2:21:36
Rank: #4153 (+115)
20M → 21M
7:11 | 7:11/mi
35K· 21.75 mi
2:26:30
Rank: #4083 (+70)
21M → 35K
4:54 | 6:33/mi
23M
2:35:09
Rank: #3991 (+92)
35K → 23M
8:39 | 6:55/mi
24M
2:41:58
Rank: #3950 (+41)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:47:57
Rank: #3910 (+40)
24M → 40K
5:59 | 7:00/mi
25.2M
2:50:35
Rank: #3910
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
2:57:22
Rank: #3849 (+61)
25.2M → Finish
6:47 | 6:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:20
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:30:02
Pace6:52 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1920:436:4020:43
6:40
-
10K
6.21 mi10:44:0041:246:4020:41
6:39
-0:01
15K
9.32 mi11:04:361:02:006:3920:36
6:38
-0:01
20K
12.43 mi11:25:251:22:496:4020:49
6:42
+0:04
Half
13.11 mi11:29:561:27:206:404:31
6:37
-0:05
25K
15.53 mi11:46:071:43:316:4016:11
6:40
+0:03
30K
18.64 mi12:07:302:04:546:4221:23
6:53
+0:13
20M
20.00 mi12:17:012:14:256:439:31
7:00
+0:07
21M
21.00 mi12:24:122:21:366:457:11
7:11
+0:11
35K
21.75 mi12:29:062:26:306:444:54
6:33
-0:38
23M
23.00 mi12:37:452:35:096:458:39
6:55
+0:22
24M
24.00 mi12:44:342:41:586:456:49
6:49
-0:06
40K
24.85 mi12:50:332:47:576:455:59
7:00
+0:11
25.2M
25.20 mi12:53:112:50:356:462:38
7:38
+0:38
Finish
26.22 mi12:59:582:57:226:466:47
6:39
-0:59

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

6:33 /mi

Average Pace

6:46 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:54:44

99% of race

Time at Steady Pace

2:38

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:46 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:23:1920:436:4020:43
6:40
#5156
10K
6.21 mi10:44:0041:246:4020:41
6:39
#5018
15K
9.32 mi11:04:361:02:006:3920:36
6:38
#4811
20K
12.43 mi11:25:251:22:496:4020:49
6:42
#4678
Half
13.11 mi11:29:561:27:206:404:31
6:37
#4655
25K
15.53 mi11:46:071:43:316:4016:11
6:40
#4496
30K
18.64 mi12:07:302:04:546:4221:23
6:53
#4317
20M
20.00 mi12:17:012:14:256:439:31
7:00
#4268
21M
21.00 mi12:24:122:21:366:457:11
7:11
#4153
35K
21.75 mi12:29:062:26:306:444:54
6:33
#4083
23M
23.00 mi12:37:452:35:096:458:39
6:55
#3991
24M
24.00 mi12:44:342:41:586:456:49
6:49
#3950
40K
24.85 mi12:50:332:47:576:455:59
7:00
#3910
25.2M
25.20 mi12:53:112:50:356:462:38
7:38
#3910
Finish
26.22 mi12:59:582:57:226:466:47
6:39
#3849
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5156480448044483(Top 16%)4200(Top 26%)4200(Top 74%)
10K6.21 mi3.10 mi5018+1384677+1274677+1274928(Top 17%)4598(Top 29%)4598(Top 81%)
15K9.32 mi3.11 mi4811+2074497+1804497+1804483(Top 16%)4200(Top 26%)4200(Top 74%)
20K12.43 mi3.11 mi4678+1334368+1294368+1294419(Top 16%)4123(Top 26%)4123(Top 73%)
Half13.11 mi0.68 mi4655+234349+194349+194506(Top 16%)4199(Top 26%)4199(Top 74%)
25K15.53 mi2.42 mi4496+1594206+1434206+1433932(Top 14%)3671(Top 23%)3671(Top 65%)
30K18.64 mi3.11 mi4317+1794038+1684038+1683954(Top 14%)3642(Top 23%)3642(Top 65%)
20M20.00 mi1.36 mi4268+493991+473991+474099(Top 14%)3752(Top 23%)3752(Top 67%)
21M21.00 mi1.00 mi4153+1153880+1113880+1113059(Top 11%)2824(Top 18%)2824(Top 50%)
35K21.75 mi0.75 mi4083+703810+703810+702714(Top 10%)2512(Top 16%)2512(Top 45%)
23M23.00 mi1.25 mi3991+923717+933717+933243(Top 11%)2954(Top 18%)2954(Top 52%)
24M24.00 mi1.00 mi3950+413671+463671+463584(Top 13%)3203(Top 20%)3203(Top 57%)
40K24.85 mi0.85 mi3910+403632+393632+393847(Top 14%)3366(Top 21%)3366(Top 60%)
25.2M25.20 mi0.35 mi39103629+33629+33980(Top 14%)3396(Top 21%)3396(Top 60%)
Finish26.22 mi1.02 mi3849+613566+633566+633625(Top 13%)3151(Top 20%)3151(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4483

Males

4200

M18-39

4200

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4928

Males

4598

M18-39

4598

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4483

Males

4200

M18-39

4200

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4419

Males

4123

M18-39

4123

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4506

Males

4199

M18-39

4199

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3932

Males

3671

M18-39

3671

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3954

Males

3642

M18-39

3642

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

4099

Males

3752

M18-39

3752

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3059

Males

2824

M18-39

2824

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2714

Males

2512

M18-39

2512

35K→23M

21.8 - 23.0 mi

Top 11%
×5stories
+23ft-63ft

Overall

3243

Males

2954

M18-39

2954

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3584

Males

3203

M18-39

3203

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3847

Males

3366

M18-39

3366

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3980

Males

3396

M18-39

3396

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3625

Males

3151

M18-39

3151

Passing Analysis

Category:
Athletes Passed
1789
Passed By
482
Net Change
+1307
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5156
5K → 10K258120+138#5156#5018
10K → 15K23629+207#5018#4811
15K → 20K19057+133#4811#4678
20K → Half3613+23#4678#4655
Half → 25K18930+159#4655#4496
25K → 30K23253+179#4496#4317
30K → 20M9445+49#4317#4268
20M → 21M12712+115#4268#4153
21M → 35K799+70#4153#4083
35K → 23M11119+92#4083#3991
23M → 24M6928+41#3991#3950
24M → 40K6020+40#3950#3910
40K → 25.2M20200#3910#3910
25.2M → Finish8827+61#3910#3849
TOTALS1789482+1307
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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