Boston Marathon logo
BOSTON MARATHON 2025

Jen Olson

Bib: 13966•F

MN

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Masters (Masters Women)
#0 / 6759
Top 7%
Division (F40-44)
#0 / 1718
Top 15%
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
7:29/mi
23:16
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:13
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:09:09
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:32:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:37:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:55:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:19:56
↑ 181↓ 1480.2%
20M
7:47/mi
2:30:31
↑ 64↓ 500.2%
21M
8:12/mi
2:38:43
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:44:21
↑ 17↓ 861.7%
23M
7:52/mi
2:54:12
↑ 23↓ 630.6%
24M
7:44/mi
3:01:56
↓ 821.3%
40K· 24.85 mi
7:49/mi
3:08:37
↓ 200.3%
25.2M
8:39/mi
3:11:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:19:11
↑ 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 HalfFaster
Distance13.11 mi
Time1:37:43
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:41:28
Pace7:44 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0623:167:2923:16
7:29
-
10K
6.21 mi11:16:0346:137:2622:57
7:23
-0:06
15K
9.32 mi11:38:591:09:097:2522:56
7:23
0:00
20K
12.43 mi12:02:321:32:427:2823:33
7:35
+0:12
Half
13.11 mi12:07:331:37:437:275:01
7:21
-0:14
25K
15.53 mi12:25:491:55:597:2818:16
7:32
+0:11
30K
18.64 mi12:49:462:19:567:3023:57
7:43
+0:11
20M
20.00 mi13:00:212:30:317:3210:35
7:47
+0:04
21M
21.00 mi13:08:332:38:437:338:12
8:12
+0:25
35K
21.75 mi13:14:112:44:217:335:38
7:32
-0:40
23M
23.00 mi13:24:022:54:127:349:51
7:52
+0:20
24M
24.00 mi13:31:463:01:567:357:44
7:44
-0:08
40K
24.85 mi13:38:273:08:377:356:41
7:49
+0:05
25.2M
25.20 mi13:41:263:11:367:362:59
8:39
+0:50
Finish
26.22 mi13:49:013:19:117:367:35
7:26
-1:13

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

7:21 /mi

Average Pace

7:36 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:00

94% of race

Time at Steady Pace

11:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:53:0623:167:2923:16
7:29
#12148
10K
6.21 mi11:16:0346:137:2622:57
7:23
#11596
15K
9.32 mi11:38:591:09:097:2522:56
7:23
#11243
20K
12.43 mi12:02:321:32:427:2823:33
7:35
#11310
Half
13.11 mi12:07:331:37:437:275:01
7:21
#11252
25K
15.53 mi12:25:491:55:597:2818:16
7:32
#11040
30K
18.64 mi12:49:462:19:567:3023:57
7:43
#10649
20M
20.00 mi13:00:212:30:317:3210:35
7:47
#10472
21M
21.00 mi13:08:332:38:437:338:12
8:12
#10309
35K
21.75 mi13:14:112:44:217:335:38
7:32
#10243
23M
23.00 mi13:24:022:54:127:349:51
7:52
#10134
24M
24.00 mi13:31:463:01:567:357:44
7:44
#10070
40K
24.85 mi13:38:273:08:377:356:41
7:49
#9991
25.2M
25.20 mi13:41:263:11:367:362:59
8:39
#9952
Finish
26.22 mi13:49:013:19:117:367:35
7:26
#9889
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi121482872287210710(Top 38%)2225(Top 18%)2225(Top 130%)
10K6.21 mi3.10 mi11596+5522600+2722600+27211092(Top 39%)2352(Top 19%)2352(Top 137%)
15K9.32 mi3.11 mi11243+3532441+1592441+15910710(Top 38%)2225(Top 18%)2225(Top 130%)
20K12.43 mi3.11 mi11310-672507-662507-6611434(Top 40%)2699(Top 22%)2699(Top 157%)
Half13.11 mi0.68 mi11252+582474+332474+3310536(Top 37%)2201(Top 18%)2201(Top 128%)
25K15.53 mi2.42 mi11040+2122411+632411+6310262(Top 36%)2217(Top 18%)2217(Top 129%)
30K18.64 mi3.11 mi10649+3912281+1302281+1309256(Top 33%)1945(Top 16%)1945(Top 113%)
20M20.00 mi1.36 mi10472+1772235+462235+468969(Top 32%)1976(Top 16%)1976(Top 115%)
21M21.00 mi1.00 mi10309+1632195+402195+408622(Top 30%)1996(Top 16%)1996(Top 116%)
35K21.75 mi0.75 mi10243+662180+152180+158876(Top 31%)2070(Top 17%)2070(Top 120%)
23M23.00 mi1.25 mi10134+1092175+52175+59075(Top 32%)2292(Top 19%)2292(Top 133%)
24M24.00 mi1.00 mi10070+642177-22177-29360(Top 33%)2493(Top 20%)2493(Top 145%)
40K24.85 mi0.85 mi9991+792171+62171+68911(Top 31%)2408(Top 20%)2408(Top 140%)
25.2M25.20 mi0.35 mi9952+392167+42167+49755(Top 34%)2881(Top 24%)2881(Top 168%)
Finish26.22 mi1.02 mi9889+632164+32164+38800(Top 31%)2438(Top 20%)2438(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10710

Females

2225

F40-44

2225

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

11092

Females

2352

F40-44

2352

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10710

Females

2225

F40-44

2225

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11434

Females

2699

F40-44

2699

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10536

Females

2201

F40-44

2201

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10262

Females

2217

F40-44

2217

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

9256

Females

1945

F40-44

1945

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8969

Females

1976

F40-44

1976

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8622

Females

1996

F40-44

1996

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8876

Females

2070

F40-44

2070

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9075

Females

2292

F40-44

2292

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9360

Females

2493

F40-44

2493

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8911

Females

2408

F40-44

2408

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9755

Females

2881

F40-44

2881

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

8800

Females

2438

F40-44

2438

Passing Analysis

Category:
Athletes Passed
2981*
Passed By
722
Net Change
+2259
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12148
5K → 10K62977+552#12148#11596
10K → 15K39542+353#11596#11243
15K → 20K154221-67#11243#11310
20K → Half668+58#11310#11252
Half → 25K26856+212#11252#11040
25K → 30K44655+391#11040#10649
30K → 20M20326+177#10649#10472
20M → 21M19532+163#10472#10309
21M → 35K9226+66#10309#10243
35K → 23M16051+109#10243#10134
23M → 24M10339+64#10134#10070
24M → 40K117*38+79#10070#9991
40K → 25.2M53*14+39#9991#9952
25.2M → Finish10037+63#9952#9889
TOTALS2981*722+2259

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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