Boston Marathon logo
BOSTON MARATHON 2025

Olivia Arnold

Bib: 14747•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 13%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:40
Rank: #7616
Start → 5K
21:40 | 6:58/mi
10K· 6.21 mi
43:21
Rank: #7697 (-81)
5K → 10K
21:41 | 6:59/mi
15K· 9.32 mi
1:05:03
Rank: #7616 (+81)
10K → 15K
21:42 | 6:59/mi
20K· 12.43 mi
1:26:39
Rank: #7319 (+297)
15K → 20K
21:36 | 6:57/mi
Half· 13.11 mi
1:31:17
Rank: #7252 (+67)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:47:45
Rank: #6846 (+406)
Half → 25K
16:28 | 6:47/mi
30K· 18.64 mi
2:08:21
Rank: #5860 (+986)
25K → 30K
20:36 | 6:38/mi
20M
2:17:15
Rank: #5468 (+392)
30K → 20M
8:54 | 6:33/mi
21M
2:24:03
Rank: #5094 (+374)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:28:46
Rank: #4890 (+204)
21M → 35K
4:43 | 6:18/mi
23M
2:36:50
Rank: #4531 (+359)
35K → 23M
8:04 | 6:27/mi
24M
2:43:05
Rank: #4266 (+265)
23M → 24M
6:15 | 6:15/mi
40K· 24.85 mi
2:48:29
Rank: #4071 (+195)
24M → 40K
5:24 | 6:19/mi
25.2M
2:50:53
Rank: #3991 (+80)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:57:15
Rank: #3810 (+181)
25.2M → Finish
6:22 | 6:15/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
Distance13.11 mi
Time1:31:17
Pace6:58 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:25:58
Pace6:33 /mi
📊Negative Split: 5.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5321:406:5821:40
6:58
-
10K
6.21 mi11:13:3443:216:5921:41
6:59
+0:01
15K
9.32 mi11:35:161:05:036:5921:42
6:59
0:00
20K
12.43 mi11:56:521:26:396:5821:36
6:57
-0:02
Half
13.11 mi12:01:301:31:176:584:38
6:47
-0:10
25K
15.53 mi12:17:581:47:456:5616:28
6:47
0:00
30K
18.64 mi12:38:342:08:216:5320:36
6:38
-0:09
20M
20.00 mi12:47:282:17:156:528:54
6:33
-0:05
21M
21.00 mi12:54:162:24:036:526:48
6:48
+0:15
35K
21.75 mi12:58:592:28:466:504:43
6:18
-0:30
23M
23.00 mi13:07:032:36:506:498:04
6:27
+0:09
24M
24.00 mi13:13:182:43:056:486:15
6:15
-0:12
40K
24.85 mi13:18:422:48:296:475:24
6:19
+0:04
25.2M
25.20 mi13:21:062:50:536:472:24
6:58
+0:39
Finish
26.22 mi13:27:282:57:156:466:22
6:15
-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

6:15 /mi

Average Pace

6:46 /mi

Slowest Pace

6:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:12

50% of race

Time at Steady Pace

1:29:03

50% of race

Time at Slower Pace

0:00

0% 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 mi10:51:5321:406:5821:40
6:58
#7616
10K
6.21 mi11:13:3443:216:5921:41
6:59
#7697
15K
9.32 mi11:35:161:05:036:5921:42
6:59
#7616
20K
12.43 mi11:56:521:26:396:5821:36
6:57
#7319
Half
13.11 mi12:01:301:31:176:584:38
6:47
#7252
25K
15.53 mi12:17:581:47:456:5616:28
6:47
#6846
30K
18.64 mi12:38:342:08:216:5320:36
6:38
#5860
20M
20.00 mi12:47:282:17:156:528:54
6:33
#5468
21M
21.00 mi12:54:162:24:036:526:48
6:48
#5094
35K
21.75 mi12:58:592:28:466:504:43
6:18
#4890
23M
23.00 mi13:07:032:36:506:498:04
6:27
#4531
24M
24.00 mi13:13:182:43:056:486:15
6:15
#4266
40K
24.85 mi13:18:422:48:296:475:24
6:19
#4071
25.2M
25.20 mi13:21:062:50:536:472:24
6:58
#3991
Finish
26.22 mi13:27:282:57:156:466:22
6:15
#3810
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi76168488487528(Top 27%)872(Top 7%)872(Top 16%)
10K6.21 mi3.10 mi7697-81886-38886-387803(Top 27%)937(Top 8%)937(Top 17%)
15K9.32 mi3.11 mi7616+81877+9877+97528(Top 27%)872(Top 7%)872(Top 16%)
20K12.43 mi3.11 mi7319+297797+80797+806608(Top 23%)679(Top 6%)679(Top 12%)
Half13.11 mi0.68 mi7252+67782+15782+156150(Top 22%)563(Top 5%)563(Top 10%)
25K15.53 mi2.42 mi6846+406699+83699+834824(Top 17%)372(Top 3%)372(Top 7%)
30K18.64 mi3.11 mi5860+986518+181518+1812552(Top 9%)132(Top 1%)132(Top 2%)
20M20.00 mi1.36 mi5468+392452+66452+661838(Top 6%)93(Top 0.8%)93(Top 2%)
21M21.00 mi1.00 mi5094+374403+49403+491561(Top 5%)82(Top 0.7%)82(Top 1%)
35K21.75 mi0.75 mi4890+204376+27376+271674(Top 6%)99(Top 0.8%)99(Top 2%)
23M23.00 mi1.25 mi4531+359337+39337+391298(Top 5%)73(Top 0.6%)73(Top 1%)
24M24.00 mi1.00 mi4266+265310+27310+271181(Top 4%)69(Top 0.6%)69(Top 1%)
40K24.85 mi0.85 mi4071+195288+22288+221028(Top 4%)62(Top 0.5%)62(Top 1%)
25.2M25.20 mi0.35 mi3991+80281+7281+71425(Top 5%)115(Top 0.9%)115(Top 2%)
Finish26.22 mi1.02 mi3810+181267+14267+141720(Top 6%)120(Top 1.0%)120(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7528

Females

872

F18-39

872

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

7803

Females

937

F18-39

937

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7528

Females

872

F18-39

872

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6608

Females

679

F18-39

679

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6150

Females

563

F18-39

563

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4824

Females

372

F18-39

372

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2552

Females

132

F18-39

132

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1838

Females

93

F18-39

93

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1561

Females

82

F18-39

82

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1674

Females

99

F18-39

99

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1298

Females

73

F18-39

73

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1181

Females

69

F18-39

69

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1028

Females

62

F18-39

62

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1425

Females

115

F18-39

115

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1720

Females

120

F18-39

120

Passing Analysis

Category:
Athletes Passed
4170
Passed By
364
Net Change
+3806
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7616
5K → 10K164245-81#7616#7697
10K → 15K182101+81#7697#7616
15K → 20K30912+297#7616#7319
20K → Half692+67#7319#7252
Half → 25K4060+406#7252#6846
25K → 30K9860+986#6846#5860
30K → 20M3920+392#5860#5468
20M → 21M3740+374#5468#5094
21M → 35K2040+204#5094#4890
35K → 23M3590+359#4890#4531
23M → 24M2650+265#4531#4266
24M → 40K1950+195#4266#4071
40K → 25.2M800+80#4071#3991
25.2M → Finish1854+181#3991#3810
TOTALS4170364+3806
📊

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