Boston Marathon logo
BOSTON MARATHON 2025

Olivia Antonelli

Bib: 27448•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:29
Rank: #26651
Start → 5K
32:29 | 10:27/mi
10K· 6.21 mi
1:04:34
Rank: #26265 (+386)
5K → 10K
32:05 | 10:20/mi
15K· 9.32 mi
1:38:40
Rank: #26435 (-170)
10K → 15K
34:06 | 10:59/mi
20K· 12.43 mi
2:15:58
Rank: #26702 (-267)
15K → 20K
37:18 | 12:00/mi
Half· 13.11 mi
2:24:07
Rank: #26754 (-52)
20K → Half
8:09 | 11:57/mi
25K· 15.53 mi
2:50:42
Rank: #26479 (+275)
Half → 25K
26:35 | 10:58/mi
30K· 18.64 mi
3:27:39
Rank: #26286 (+193)
25K → 30K
36:57 | 11:54/mi
20M
3:42:51
Rank: #26135 (+151)
30K → 20M
15:12 | 11:11/mi
21M
3:56:02
Rank: #26104 (+31)
20M → 21M
13:11 | 13:11/mi
35K· 21.75 mi
4:04:16
Rank: #26046 (+58)
21M → 35K
8:14 | 11:00/mi
23M
4:18:01
Rank: #25930 (+116)
35K → 23M
13:45 | 10:59/mi
24M
4:28:33
Rank: #25835 (+95)
23M → 24M
10:32 | 10:32/mi
40K· 24.85 mi
4:38:29
Rank: #25798 (+37)
24M → 40K
9:56 | 11:37/mi
25.2M
4:43:07
Rank: #25805 (-7)
40K → 25.2M
4:38 | 13:26/mi
Finish· 26.22 mi
4:53:40
Rank: #25778 (+27)
25.2M → Finish
10:33 | 10:21/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
Time2:24:07
Pace11:00 /mi
2nd Half
Distance13.11 mi
Time2:29:33
Pace11:24 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0632:2910:2732:29
10:27
-
10K
6.21 mi12:21:111:04:3410:2332:05
10:20
-0:07
15K
9.32 mi12:55:171:38:4010:3534:06
10:59
+0:39
20K
12.43 mi13:32:352:15:5810:5637:18
12:00
+1:01
Half
13.11 mi13:40:442:24:0711:008:09
11:57
-0:03
25K
15.53 mi14:07:192:50:4210:5926:35
10:58
-0:59
30K
18.64 mi14:44:163:27:3911:0836:57
11:54
+0:56
20M
20.00 mi14:59:283:42:5111:0915:12
11:11
-0:43
21M
21.00 mi15:12:393:56:0211:1413:11
13:11
+2:00
35K
21.75 mi15:20:534:04:1611:148:14
11:00
-2:11
23M
23.00 mi15:34:384:18:0111:1313:45
10:59
-0:01
24M
24.00 mi15:45:104:28:3311:1110:32
10:32
-0:27
40K
24.85 mi15:55:064:38:2911:129:56
11:37
+1:05
25.2M
25.20 mi15:59:444:43:0711:144:38
13:26
+1:49
Finish
26.22 mi16:10:174:53:4011:1310:33
10:21
-3:05

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

10:20 /mi

Average Pace

11:13 /mi

Slowest Pace

13:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:39

29% of race

Time at Steady Pace

1:37:52

33% of race

Time at Slower Pace

1:50:09

38% of race

Average Pace: 11:12 /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 mi11:49:0632:2910:2732:29
10:27
#26651
10K
6.21 mi12:21:111:04:3410:2332:05
10:20
#26265
15K
9.32 mi12:55:171:38:4010:3534:06
10:59
#26435
20K
12.43 mi13:32:352:15:5810:5637:18
12:00
#26702
Half
13.11 mi13:40:442:24:0711:008:09
11:57
#26754
25K
15.53 mi14:07:192:50:4210:5926:35
10:58
#26479
30K
18.64 mi14:44:163:27:3911:0836:57
11:54
#26286
20M
20.00 mi14:59:283:42:5111:0915:12
11:11
#26135
21M
21.00 mi15:12:393:56:0211:1413:11
13:11
#26104
35K
21.75 mi15:20:534:04:1611:148:14
11:00
#26046
23M
23.00 mi15:34:384:18:0111:1313:45
10:59
#25930
24M
24.00 mi15:45:104:28:3311:1110:32
10:32
#25835
40K
24.85 mi15:55:064:38:2911:129:56
11:37
#25798
25.2M
25.20 mi15:59:444:43:0711:144:38
13:26
#25805
Finish
26.22 mi16:10:174:53:4011:1310:33
10:21
#25778
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26651111261112626644(Top 94%)11158(Top 91%)11158(Top 204%)
10K6.21 mi3.10 mi26265+38610915+21110915+21125961(Top 91%)10769(Top 88%)10769(Top 197%)
15K9.32 mi3.11 mi26435-17011018-10311018-10326644(Top 94%)11158(Top 91%)11158(Top 204%)
20K12.43 mi3.11 mi26702-26711179-16111179-16127122(Top 95%)11470(Top 94%)11470(Top 210%)
Half13.11 mi0.68 mi26754-5211214-3511214-3527408(Top 96%)11650(Top 95%)11650(Top 213%)
25K15.53 mi2.42 mi26479+27511067+14711067+14725152(Top 89%)10376(Top 85%)10376(Top 190%)
30K18.64 mi3.11 mi26286+19310973+9410973+9425438(Top 90%)10640(Top 87%)10640(Top 195%)
20M20.00 mi1.36 mi26135+15110912+6110912+6123953(Top 84%)9939(Top 81%)9939(Top 182%)
21M21.00 mi1.00 mi26104+3110909+310909+325284(Top 89%)10713(Top 88%)10713(Top 196%)
35K21.75 mi0.75 mi26046+5810883+2610883+2624185(Top 85%)10165(Top 83%)10165(Top 186%)
23M23.00 mi1.25 mi25930+11610825+5810825+5823164(Top 82%)9699(Top 79%)9699(Top 177%)
24M24.00 mi1.00 mi25835+9510790+3510790+3522889(Top 81%)9592(Top 78%)9592(Top 175%)
40K24.85 mi0.85 mi25798+3710784+610784+624320(Top 86%)10339(Top 85%)10339(Top 189%)
25.2M25.20 mi0.35 mi25805-710790-610790-625565(Top 90%)10983(Top 90%)10983(Top 201%)
Finish26.22 mi1.02 mi25778+2710783+710783+723897(Top 84%)10125(Top 83%)10125(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21stories
+97ft-345ft

Overall

26644

Females

11158

F18-39

11158

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

25961

Females

10769

F18-39

10769

10K→15K

6.2 - 9.3 mi

Top 94%
×3stories
+67ft-78ft

Overall

26644

Females

11158

F18-39

11158

15K→20K

9.3 - 12.4 mi

Top 95%
×5stories
+106ft-86ft

Overall

27122

Females

11470

F18-39

11470

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

27408

Females

11650

F18-39

11650

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25152

Females

10376

F18-39

10376

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

25438

Females

10640

F18-39

10640

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

23953

Females

9939

F18-39

9939

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

25284

Females

10713

F18-39

10713

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24185

Females

10165

F18-39

10165

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

23164

Females

9699

F18-39

9699

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

22889

Females

9592

F18-39

9592

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24320

Females

10339

F18-39

10339

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25565

Females

10983

F18-39

10983

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

23897

Females

10125

F18-39

10125

Passing Analysis

Category:
Athletes Passed
1640
Passed By
767
Net Change
+873
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26651
5K → 10K42943+386#26651#26265
10K → 15K79249-170#26265#26435
15K → 20K39306-267#26435#26702
20K → Half961-52#26702#26754
Half → 25K2794+275#26754#26479
25K → 30K21825+193#26479#26286
30K → 20M1521+151#26286#26135
20M → 21M5726+31#26135#26104
21M → 35K646+58#26104#26046
35K → 23M1182+116#26046#25930
23M → 24M983+95#25930#25835
24M → 40K4912+37#25835#25798
40K → 25.2M916-7#25798#25805
25.2M → Finish4013+27#25805#25778
TOTALS1640767+873
📊

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