Boston Marathon logo
BOSTON MARATHON 2025

Jackson Kuntze

Bib: 3350•M

NC

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 8%
Masters (Masters Men)
#0 / 10463
Top 2%
Division (M40-44)
#0 / 2247
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:41
Rank: #2649
Start → 5K
19:41 | 6:20/mi
10K· 6.21 mi
39:07
Rank: #2373 (+276)
5K → 10K
19:26 | 6:15/mi
15K· 9.32 mi
58:33
Rank: #2261 (+112)
10K → 15K
19:26 | 6:15/mi
20K· 12.43 mi
1:18:03
Rank: #2149 (+112)
15K → 20K
19:30 | 6:17/mi
Half· 13.11 mi
1:22:06
Rank: #2076 (+73)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:37:03
Rank: #1924 (+152)
Half → 25K
14:57 | 6:10/mi
30K· 18.64 mi
1:56:44
Rank: #1773 (+151)
25K → 30K
19:41 | 6:20/mi
20M
2:05:26
Rank: #1703 (+70)
30K → 20M
8:42 | 6:24/mi
21M
2:12:16
Rank: #1664 (+39)
20M → 21M
6:50 | 6:50/mi
35K· 21.75 mi
2:16:47
Rank: #1609 (+55)
21M → 35K
4:31 | 6:02/mi
23M
2:24:43
Rank: #1517 (+92)
35K → 23M
7:56 | 6:20/mi
24M
2:30:49
Rank: #1438 (+79)
23M → 24M
6:06 | 6:06/mi
40K· 24.85 mi
2:36:11
Rank: #1401 (+37)
24M → 40K
5:22 | 6:17/mi
25.2M
2:38:35
Rank: #1389 (+12)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:44:59
Rank: #1390 (-1)
25.2M → Finish
6:24 | 6:17/mi

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
Time1:22:06
Pace6:16 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:22:53
Pace6:19 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1619:416:2019:41
6:20
-
10K
6.21 mi10:40:4239:076:1819:26
6:15
-0:05
15K
9.32 mi11:00:0858:336:1719:26
6:15
0:00
20K
12.43 mi11:19:381:18:036:1719:30
6:17
+0:02
Half
13.11 mi11:23:411:22:066:164:03
5:56
-0:21
25K
15.53 mi11:38:381:37:036:1514:57
6:10
+0:14
30K
18.64 mi11:58:191:56:446:1619:41
6:20
+0:10
20M
20.00 mi12:07:012:05:266:168:42
6:24
+0:04
21M
21.00 mi12:13:512:12:166:186:50
6:50
+0:26
35K
21.75 mi12:18:222:16:476:174:31
6:02
-0:48
23M
23.00 mi12:26:182:24:436:187:56
6:20
+0:18
24M
24.00 mi12:32:242:30:496:176:06
6:06
-0:14
40K
24.85 mi12:37:462:36:116:175:22
6:17
+0:11
25.2M
25.20 mi12:40:102:38:356:182:24
6:58
+0:41
Finish
26.22 mi12:46:342:44:596:186:24
6:17
-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

5:56 /mi

Average Pace

6:18 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:45

94% of race

Time at Steady Pace

9:14

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:18 /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 mi10:21:1619:416:2019:41
6:20
#2649
10K
6.21 mi10:40:4239:076:1819:26
6:15
#2373
15K
9.32 mi11:00:0858:336:1719:26
6:15
#2261
20K
12.43 mi11:19:381:18:036:1719:30
6:17
#2149
Half
13.11 mi11:23:411:22:066:164:03
5:56
#2076
25K
15.53 mi11:38:381:37:036:1514:57
6:10
#1924
30K
18.64 mi11:58:191:56:446:1619:41
6:20
#1773
20M
20.00 mi12:07:012:05:266:168:42
6:24
#1703
21M
21.00 mi12:13:512:12:166:186:50
6:50
#1664
35K
21.75 mi12:18:222:16:476:174:31
6:02
#1609
23M
23.00 mi12:26:182:24:436:187:56
6:20
#1517
24M
24.00 mi12:32:242:30:496:176:06
6:06
#1438
40K
24.85 mi12:37:462:36:116:175:22
6:17
#1401
25.2M
25.20 mi12:40:102:38:356:182:24
6:58
#1389
Finish
26.22 mi12:46:342:44:596:186:24
6:17
#1390
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2649252425242110(Top 7%)2012(Top 12%)2012(Top 90%)
10K6.21 mi3.10 mi2373+2762263+2612263+2612162(Top 8%)2065(Top 13%)2065(Top 92%)
15K9.32 mi3.11 mi2261+1122158+1052158+1052110(Top 7%)2012(Top 12%)2012(Top 90%)
20K12.43 mi3.11 mi2149+1122051+1072051+1071912(Top 7%)1822(Top 11%)1822(Top 81%)
Half13.11 mi0.68 mi2076+731981+701981+70957(Top 3%)907(Top 6%)907(Top 40%)
25K15.53 mi2.42 mi1924+1521834+1471834+1471328(Top 5%)1258(Top 8%)1258(Top 56%)
30K18.64 mi3.11 mi1773+1511688+1461688+1461322(Top 5%)1249(Top 8%)1249(Top 56%)
20M20.00 mi1.36 mi1703+701617+711617+711251(Top 4%)1182(Top 7%)1182(Top 53%)
21M21.00 mi1.00 mi1664+391578+391578+391623(Top 6%)1532(Top 10%)1532(Top 68%)
35K21.75 mi0.75 mi1609+551525+531525+53818(Top 3%)764(Top 5%)764(Top 34%)
23M23.00 mi1.25 mi1517+921436+891436+89971(Top 3%)915(Top 6%)915(Top 41%)
24M24.00 mi1.00 mi1438+791358+781358+78777(Top 3%)731(Top 5%)731(Top 33%)
40K24.85 mi0.85 mi1401+371322+361322+36916(Top 3%)858(Top 5%)858(Top 38%)
25.2M25.20 mi0.35 mi1389+121310+121310+121348(Top 5%)1235(Top 8%)1235(Top 55%)
Finish26.22 mi1.02 mi1390-11311-11311-11799(Top 6%)1662(Top 10%)1662(Top 74%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

2110

Males

2012

M40-44

2012

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2162

Males

2065

M40-44

2065

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

2110

Males

2012

M40-44

2012

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1912

Males

1822

M40-44

1822

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

957

Males

907

M40-44

907

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1328

Males

1258

M40-44

1258

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1322

Males

1249

M40-44

1249

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1251

Males

1182

M40-44

1182

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1623

Males

1532

M40-44

1532

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

818

Males

764

M40-44

764

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

971

Males

915

M40-44

915

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

777

Males

731

M40-44

731

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

916

Males

858

M40-44

858

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1348

Males

1235

M40-44

1235

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1799

Males

1662

M40-44

1662

Passing Analysis

Category:
Athletes Passed
1406
Passed By
147
Net Change
+1259
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2649
5K → 10K29519+276#2649#2373
10K → 15K14129+112#2373#2261
15K → 20K13119+112#2261#2149
20K → Half730+73#2149#2076
Half → 25K1542+152#2076#1924
25K → 30K16817+151#1924#1773
30K → 20M766+70#1773#1703
20M → 21M6021+39#1703#1664
21M → 35K550+55#1664#1609
35K → 23M964+92#1609#1517
23M → 24M790+79#1517#1438
24M → 40K414+37#1438#1401
40K → 25.2M164+12#1401#1389
25.2M → Finish2122-1#1389#1390
TOTALS1406147+1259
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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