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BOSTON MARATHON 2025

Ryan Kaiser

Bib: 1273•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Masters (Masters Men)
#0 / 10463
Top 9%
Division (M45-49)
#0 / 2386
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:01/mi
18:41
↑ 97↓ 3451.5%
10K· 6.21 mi
6:02/mi
37:25
↑ 79↓ 1380.4%
15K· 9.32 mi
6:04/mi
56:15
↑ 67↓ 78
20K· 12.43 mi
6:25/mi
1:16:10
↑ 106↓ 860.1%
Half· 13.11 mi
6:23/mi
1:20:31
↑ 19↓ 370.5%
25K· 15.53 mi
6:53/mi
1:37:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:01:11
↑ 181↓ 1480.2%
20M
7:36/mi
2:11:30
↑ 64↓ 500.2%
21M
7:48/mi
2:19:18
↑ 106↓ 241.6%
35K· 21.75 mi
7:14/mi
2:24:43
↑ 17↓ 861.7%
23M
7:27/mi
2:34:03
↑ 23↓ 630.6%
24M
7:12/mi
2:41:15
↓ 821.3%
40K· 24.85 mi
7:20/mi
2:47:31
↓ 200.3%
25.2M
7:53/mi
2:50:14
↑ 13↓ 160.2%
Finish· 26.22 mi
7:10/mi
2:57:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:31
Pace6:09 /mi
2nd Half
Distance13.11 mi
Time1:37:01
Pace7:24 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1818:416:0118:41
6:01
-
10K
6.21 mi10:38:0237:256:0118:44
6:02
+0:01
15K
9.32 mi10:56:5256:156:0218:50
6:04
+0:02
20K
12.43 mi11:16:471:16:106:0819:55
6:25
+0:21
Half
13.11 mi11:21:081:20:316:094:21
6:23
-0:02
25K
15.53 mi11:37:491:37:126:1516:41
6:53
+0:30
30K
18.64 mi12:01:482:01:116:3023:59
7:43
+0:50
20M
20.00 mi12:12:072:11:306:3410:19
7:36
-0:07
21M
21.00 mi12:19:552:19:186:387:48
7:48
+0:12
35K
21.75 mi12:25:202:24:436:395:25
7:14
-0:34
23M
23.00 mi12:34:402:34:036:429:20
7:27
+0:13
24M
24.00 mi12:41:522:41:156:437:12
7:12
-0:15
40K
24.85 mi12:48:082:47:316:446:16
7:20
+0:08
25.2M
25.20 mi12:50:512:50:146:452:43
7:53
+0:33
Finish
26.22 mi12:58:092:57:326:477:18
7:10
-0:43

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

6:01 /mi

Average Pace

6:47 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:31

45% of race

Time at Steady Pace

52:12

29% of race

Time at Slower Pace

44:49

25% 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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:19:1818:416:0118:41
6:01
#1128
10K
6.21 mi10:38:0237:256:0118:44
6:02
#1141
15K
9.32 mi10:56:5256:156:0218:50
6:04
#1159
20K
12.43 mi11:16:471:16:106:0819:55
6:25
#1440
Half
13.11 mi11:21:081:20:316:094:21
6:23
#1503
25K
15.53 mi11:37:491:37:126:1516:41
6:53
#1967
30K
18.64 mi12:01:482:01:116:3023:59
7:43
#3047
20M
20.00 mi12:12:072:11:306:3410:19
7:36
#3304
21M
21.00 mi12:19:552:19:186:387:48
7:48
#3453
35K
21.75 mi12:25:202:24:436:395:25
7:14
#3535
23M
23.00 mi12:34:402:34:036:429:20
7:27
#3661
24M
24.00 mi12:41:522:41:156:437:12
7:12
#3744
40K
24.85 mi12:48:082:47:316:446:16
7:20
#3802
25.2M
25.20 mi12:50:512:50:146:452:43
7:53
#3804
Finish
26.22 mi12:58:092:57:326:477:18
7:10
#3900
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi1128106910691241(Top 4%)1177(Top 7%)1177(Top 49%)
10K6.21 mi3.10 mi1141-131078-91078-91199(Top 4%)1136(Top 7%)1136(Top 48%)
15K9.32 mi3.11 mi1159-181097-191097-191241(Top 4%)1177(Top 7%)1177(Top 49%)
20K12.43 mi3.11 mi1440-2811366-2691366-2692577(Top 9%)2457(Top 15%)2457(Top 103%)
Half13.11 mi0.68 mi1503-631428-621428-622923(Top 10%)2790(Top 17%)2790(Top 117%)
25K15.53 mi2.42 mi1967-4641876-4481876-4485492(Top 19%)4982(Top 31%)4982(Top 209%)
30K18.64 mi3.11 mi3047-10802900-10242900-10249301(Top 33%)7309(Top 45%)7309(Top 306%)
20M20.00 mi1.36 mi3304-2573127-2273127-2277578(Top 27%)6180(Top 38%)6180(Top 259%)
21M21.00 mi1.00 mi3453-1493263-1363263-1366144(Top 22%)5145(Top 32%)5145(Top 216%)
35K21.75 mi0.75 mi3535-823329-663329-666810(Top 24%)5569(Top 35%)5569(Top 233%)
23M23.00 mi1.25 mi3661-1263437-1083437-1086346(Top 22%)5177(Top 32%)5177(Top 217%)
24M24.00 mi1.00 mi3744-833497-603497-605783(Top 20%)4771(Top 30%)4771(Top 200%)
40K24.85 mi0.85 mi3802-583541-443541-445766(Top 20%)4699(Top 29%)4699(Top 197%)
25.2M25.20 mi0.35 mi3804-23535+63535+65210(Top 18%)4231(Top 26%)4231(Top 177%)
Finish26.22 mi1.02 mi3900-963609-743609-746758(Top 24%)5168(Top 32%)5168(Top 217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

1241

Males

1177

M45-49

1177

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

1199

Males

1136

M45-49

1136

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

1241

Males

1177

M45-49

1177

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2577

Males

2457

M45-49

2457

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2923

Males

2790

M45-49

2790

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5492

Males

4982

M45-49

4982

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9301

Males

7309

M45-49

7309

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7578

Males

6180

M45-49

6180

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6144

Males

5145

M45-49

5145

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6810

Males

5569

M45-49

5569

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

6346

Males

5177

M45-49

5177

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5783

Males

4771

M45-49

4771

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5766

Males

4699

M45-49

4699

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5210

Males

4231

M45-49

4231

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6758

Males

5168

M45-49

5168

Passing Analysis

Category:
Athletes Passed
287
Passed By
3059
Net Change
-2772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1128
5K → 10K5063-13#1128#1141
10K → 15K2745-18#1141#1159
15K → 20K7288-281#1159#1440
20K → Half063-63#1440#1503
Half → 25K6470-464#1503#1967
25K → 30K51085-1080#1967#3047
30K → 20M16273-257#3047#3304
20M → 21M17166-149#3304#3453
21M → 35K21103-82#3453#3535
35K → 23M32158-126#3535#3661
23M → 24M30113-83#3661#3744
24M → 40K2987-58#3744#3802
40K → 25.2M1820-2#3802#3804
25.2M → Finish29125-96#3804#3900
TOTALS2873059-2772
📊

Passing Visuals

Category:
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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