Boston Marathon logo
BOSTON MARATHON 2025

Kris Pierson

Bib: 3228•M

OH

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M45-49)
#0 / 2386
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:27
Rank: #4423
Start → 5K
20:27 | 6:35/mi
10K· 6.21 mi
40:42
Rank: #4130 (+293)
5K → 10K
20:15 | 6:31/mi
15K· 9.32 mi
1:00:59
Rank: #3972 (+158)
10K → 15K
20:17 | 6:32/mi
20K· 12.43 mi
1:21:11
Rank: #3721 (+251)
15K → 20K
20:12 | 6:30/mi
Half· 13.11 mi
1:25:31
Rank: #3679 (+42)
20K → Half
4:20 | 6:21/mi
25K· 15.53 mi
1:41:12
Rank: #3475 (+204)
Half → 25K
15:41 | 6:28/mi
30K· 18.64 mi
2:01:39
Rank: #3188 (+287)
25K → 30K
20:27 | 6:35/mi
20M
2:10:48
Rank: #3099 (+89)
30K → 20M
9:09 | 6:44/mi
21M
2:17:51
Rank: #3020 (+79)
20M → 21M
7:03 | 7:03/mi
35K· 21.75 mi
2:22:47
Rank: #2992 (+28)
21M → 35K
4:56 | 6:36/mi
23M
2:31:20
Rank: #2936 (+56)
35K → 23M
8:33 | 6:50/mi
24M
2:37:58
Rank: #2891 (+45)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
2:43:49
Rank: #2860 (+31)
24M → 40K
5:51 | 6:51/mi
25.2M
2:46:26
Rank: #2858 (+2)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:53:07
Rank: #2831 (+27)
25.2M → Finish
6:41 | 6:34/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 HalfFaster
Distance13.11 mi
Time1:25:31
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:27:36
Pace6:41 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0920:276:3520:27
6:35
-
10K
6.21 mi10:43:2440:426:3320:15
6:31
-0:04
15K
9.32 mi11:03:411:00:596:3320:17
6:32
+0:01
20K
12.43 mi11:23:531:21:116:3220:12
6:30
-0:02
Half
13.11 mi11:28:131:25:316:314:20
6:21
-0:09
25K
15.53 mi11:43:541:41:126:3115:41
6:28
+0:07
30K
18.64 mi12:04:212:01:396:3220:27
6:35
+0:07
20M
20.00 mi12:13:302:10:486:329:09
6:44
+0:09
21M
21.00 mi12:20:332:17:516:347:03
7:03
+0:19
35K
21.75 mi12:25:292:22:476:344:56
6:36
-0:27
23M
23.00 mi12:34:022:31:206:358:33
6:50
+0:14
24M
24.00 mi12:40:402:37:586:356:38
6:38
-0:12
40K
24.85 mi12:46:312:43:496:355:51
6:51
+0:13
25.2M
25.20 mi12:49:082:46:266:362:37
7:35
+0:44
Finish
26.22 mi12:55:492:53:076:366:41
6:34
-1:01

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

6:21 /mi

Average Pace

6:36 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:27

94% of race

Time at Steady Pace

7:03

4% of race

Time at Slower Pace

2:37

2% of race

Average Pace: 6:36 /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 mi10:23:0920:276:3520:27
6:35
#4423
10K
6.21 mi10:43:2440:426:3320:15
6:31
#4130
15K
9.32 mi11:03:411:00:596:3320:17
6:32
#3972
20K
12.43 mi11:23:531:21:116:3220:12
6:30
#3721
Half
13.11 mi11:28:131:25:316:314:20
6:21
#3679
25K
15.53 mi11:43:541:41:126:3115:41
6:28
#3475
30K
18.64 mi12:04:212:01:396:3220:27
6:35
#3188
20M
20.00 mi12:13:302:10:486:329:09
6:44
#3099
21M
21.00 mi12:20:332:17:516:347:03
7:03
#3020
35K
21.75 mi12:25:292:22:476:344:56
6:36
#2992
23M
23.00 mi12:34:022:31:206:358:33
6:50
#2936
24M
24.00 mi12:40:402:37:586:356:38
6:38
#2891
40K
24.85 mi12:46:312:43:496:355:51
6:51
#2860
25.2M
25.20 mi12:49:082:46:266:362:37
7:35
#2858
Finish
26.22 mi12:55:492:53:076:366:41
6:34
#2831
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4423415941593724(Top 13%)3513(Top 22%)3513(Top 147%)
10K6.21 mi3.10 mi4130+2933892+2673892+2673852(Top 14%)3629(Top 23%)3629(Top 152%)
15K9.32 mi3.11 mi3972+1583743+1493743+1493724(Top 13%)3513(Top 22%)3513(Top 147%)
20K12.43 mi3.11 mi3721+2513513+2303513+2303130(Top 11%)2970(Top 18%)2970(Top 124%)
Half13.11 mi0.68 mi3679+423478+353478+352764(Top 10%)2640(Top 16%)2640(Top 111%)
25K15.53 mi2.42 mi3475+2043295+1833295+1832707(Top 10%)2575(Top 16%)2575(Top 108%)
30K18.64 mi3.11 mi3188+2873028+2673028+2672332(Top 8%)2210(Top 14%)2210(Top 93%)
20M20.00 mi1.36 mi3099+892940+882940+882601(Top 9%)2443(Top 15%)2443(Top 102%)
21M21.00 mi1.00 mi3020+792863+772863+772438(Top 9%)2274(Top 14%)2274(Top 95%)
35K21.75 mi0.75 mi2992+282833+302833+302894(Top 10%)2666(Top 17%)2666(Top 112%)
23M23.00 mi1.25 mi2936+562778+552778+552834(Top 10%)2596(Top 16%)2596(Top 109%)
24M24.00 mi1.00 mi2891+452736+422736+422626(Top 9%)2409(Top 15%)2409(Top 101%)
40K24.85 mi0.85 mi2860+312707+292707+293021(Top 11%)2717(Top 17%)2717(Top 114%)
25.2M25.20 mi0.35 mi2858+22704+32704+33735(Top 13%)3217(Top 20%)3217(Top 135%)
Finish26.22 mi1.02 mi2831+272678+262678+263072(Top 11%)2727(Top 17%)2727(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3724

Males

3513

M45-49

3513

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3852

Males

3629

M45-49

3629

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3724

Males

3513

M45-49

3513

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3130

Males

2970

M45-49

2970

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2764

Males

2640

M45-49

2640

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2707

Males

2575

M45-49

2575

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2332

Males

2210

M45-49

2210

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2601

Males

2443

M45-49

2443

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2438

Males

2274

M45-49

2274

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2894

Males

2666

M45-49

2666

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2834

Males

2596

M45-49

2596

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2626

Males

2409

M45-49

2409

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3021

Males

2717

M45-49

2717

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3735

Males

3217

M45-49

3217

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3072

Males

2727

M45-49

2727

Passing Analysis

Category:
Athletes Passed
1842
Passed By
250
Net Change
+1592
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4423
5K → 10K34047+293#4423#4130
10K → 15K19234+158#4130#3972
15K → 20K2554+251#3972#3721
20K → Half486+42#3721#3679
Half → 25K2095+204#3679#3475
25K → 30K2947+287#3475#3188
30K → 20M10415+89#3188#3099
20M → 21M9011+79#3099#3020
21M → 35K4416+28#3020#2992
35K → 23M8327+56#2992#2936
23M → 24M6419+45#2936#2891
24M → 40K5423+31#2891#2860
40K → 25.2M2018+2#2860#2858
25.2M → Finish4518+27#2858#2831
TOTALS1842250+1592
📊

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