Boston Marathon logo
BOSTON MARATHON 2025

Jason Holzapfel

Bib: 7120•M

OH

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 26%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M45-49)
#0 / 2386
Top 16%
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
6:53/mi
21:22
↑ 97↓ 3451.5%
10K· 6.21 mi
6:54/mi
42:47
↑ 79↓ 1380.4%
15K· 9.32 mi
6:51/mi
1:04:05
↑ 67↓ 78
20K· 12.43 mi
6:52/mi
1:25:25
↑ 106↓ 860.1%
Half· 13.11 mi
6:49/mi
1:30:04
↑ 19↓ 370.5%
25K· 15.53 mi
6:54/mi
1:46:47
↑ 66↓ 880.2%
30K· 18.64 mi
6:58/mi
2:08:25
↑ 181↓ 1480.2%
20M
6:55/mi
2:17:49
↑ 64↓ 500.2%
21M
7:10/mi
2:24:59
↑ 106↓ 241.6%
35K· 21.75 mi
6:45/mi
2:30:02
↑ 17↓ 861.7%
23M
6:50/mi
2:38:35
↑ 23↓ 630.6%
24M
6:34/mi
2:45:09
↓ 821.3%
40K· 24.85 mi
6:41/mi
2:50:52
↓ 200.3%
25.2M
7:12/mi
2:53:21
↑ 13↓ 160.2%
Finish· 26.22 mi
6:24/mi
2:59:52
↑ 22↓ 21

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 Half⚖️ Balanced
Distance13.11 mi
Time1:30:04
Pace6:52 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:48
Pace6:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:5421:226:5321:22
6:53
-
10K
6.21 mi10:49:1942:476:5321:25
6:54
+0:01
15K
9.32 mi11:10:371:04:056:5321:18
6:51
-0:03
20K
12.43 mi11:31:571:25:256:5221:20
6:52
+0:01
Half
13.11 mi11:36:361:30:046:524:39
6:49
-0:03
25K
15.53 mi11:53:191:46:476:5216:43
6:54
+0:05
30K
18.64 mi12:14:572:08:256:5321:38
6:58
+0:04
20M
20.00 mi12:24:212:17:496:539:24
6:55
-0:03
21M
21.00 mi12:31:312:24:596:547:10
7:10
+0:15
35K
21.75 mi12:36:342:30:026:545:03
6:45
-0:25
23M
23.00 mi12:45:072:38:356:548:33
6:50
+0:05
24M
24.00 mi12:51:412:45:096:536:34
6:34
-0:16
40K
24.85 mi12:57:242:50:526:525:43
6:41
+0:07
25.2M
25.20 mi12:59:532:53:216:532:29
7:12
+0:31
Finish
26.22 mi13:06:242:59:526:526:31
6:24
-0:48

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

6:24 /mi

Average Pace

6:52 /mi

Slowest Pace

7:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:13

95% of race

Time at Steady Pace

9:39

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:52 /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 mi10:27:5421:226:5321:22
6:53
#6873
10K
6.21 mi10:49:1942:476:5321:25
6:54
#7038
15K
9.32 mi11:10:371:04:056:5321:18
6:51
#6864
20K
12.43 mi11:31:571:25:256:5221:20
6:52
#6606
Half
13.11 mi11:36:361:30:046:524:39
6:49
#6590
25K
15.53 mi11:53:191:46:476:5216:43
6:54
#6366
30K
18.64 mi12:14:572:08:256:5321:38
6:58
#5881
20M
20.00 mi12:24:212:17:496:539:24
6:55
#5678
21M
21.00 mi12:31:312:24:596:547:10
7:10
#5466
35K
21.75 mi12:36:342:30:026:545:03
6:45
#5362
23M
23.00 mi12:45:072:38:356:548:33
6:50
#5156
24M
24.00 mi12:51:412:45:096:536:34
6:34
#4980
40K
24.85 mi12:57:242:50:526:525:43
6:41
#4823
25.2M
25.20 mi12:59:532:53:216:532:29
7:12
#4753
Finish
26.22 mi13:06:242:59:526:526:31
6:24
#4652
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6873620962096612(Top 23%)5950(Top 37%)5950(Top 249%)
10K6.21 mi3.10 mi7038-1656319-1106319-1107166(Top 25%)6403(Top 40%)6403(Top 268%)
15K9.32 mi3.11 mi6864+1746173+1466173+1466612(Top 23%)5950(Top 37%)5950(Top 249%)
20K12.43 mi3.11 mi6606+2585965+2085965+2085900(Top 21%)5348(Top 33%)5348(Top 224%)
Half13.11 mi0.68 mi6590+165952+135952+136193(Top 22%)5578(Top 35%)5578(Top 234%)
25K15.53 mi2.42 mi6366+2245759+1935759+1935594(Top 20%)5068(Top 31%)5068(Top 212%)
30K18.64 mi3.11 mi5881+4855347+4125347+4124463(Top 16%)4081(Top 25%)4081(Top 171%)
20M20.00 mi1.36 mi5678+2035173+1745173+1743615(Top 13%)3331(Top 21%)3331(Top 140%)
21M21.00 mi1.00 mi5466+2124992+1814992+1812992(Top 11%)2766(Top 17%)2766(Top 116%)
35K21.75 mi0.75 mi5362+1044896+964896+963793(Top 13%)3415(Top 21%)3415(Top 143%)
23M23.00 mi1.25 mi5156+2064714+1824714+1822846(Top 10%)2608(Top 16%)2608(Top 109%)
24M24.00 mi1.00 mi4980+1764554+1604554+1602340(Top 8%)2165(Top 13%)2165(Top 91%)
40K24.85 mi0.85 mi4823+1574419+1354419+1352310(Top 8%)2115(Top 13%)2115(Top 89%)
25.2M25.20 mi0.35 mi4753+704353+664353+662146(Top 8%)1935(Top 12%)1935(Top 81%)
Finish26.22 mi1.02 mi4652+1014264+894264+892290(Top 8%)2093(Top 13%)2093(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21story building
+97ft-345ft

Overall

6612

Males

5950

M45-49

5950

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

7166

Males

6403

M45-49

6403

10K→15K

6.2 - 9.3 mi

Top 23%
×3story building
+67ft-78ft

Overall

6612

Males

5950

M45-49

5950

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

5900

Males

5348

M45-49

5348

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

6193

Males

5578

M45-49

5578

Half→25K

13.1 - 15.5 mi

Top 20%
×4story building
+66ft-88ft

Overall

5594

Males

5068

M45-49

5068

25K→30K

15.5 - 18.6 mi

Top 16%
×9story building
+181ft-148ft

Overall

4463

Males

4081

M45-49

4081

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3615

Males

3331

M45-49

3331

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2992

Males

2766

M45-49

2766

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3793

Males

3415

M45-49

3415

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2846

Males

2608

M45-49

2608

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2340

Males

2165

M45-49

2165

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2310

Males

2115

M45-49

2115

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2146

Males

1935

M45-49

1935

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2290

Males

2093

M45-49

2093

Passing Analysis

Category:
Athletes Passed
2688
Passed By
467
Net Change
+2221
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6873
5K → 10K132297-165#6873#7038
10K → 15K23561+174#7038#6864
15K → 20K28426+258#6864#6606
20K → Half3923+16#6606#6590
Half → 25K24723+224#6590#6366
25K → 30K49510+485#6366#5881
30K → 20M2052+203#5881#5678
20M → 21M2142+212#5678#5466
21M → 35K1106+104#5466#5362
35K → 23M2104+206#5362#5156
23M → 24M1771+176#5156#4980
24M → 40K1603+157#4980#4823
40K → 25.2M755+70#4823#4753
25.2M → Finish1054+101#4753#4652
TOTALS2688467+2221
📊

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing