Boston Marathon logo
BOSTON MARATHON 2025

Brianna Mitchell

Bib: 11106•F

NC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 23%
Gender (Female)
#0 / 12228
Top 7%
Division (F18-39)
#0 / 5469
Top 13%
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
6:53/mi
21:22
↑ 97↓ 3451.5%
10K· 6.21 mi
6:49/mi
42:32
↑ 79↓ 1380.4%
15K· 9.32 mi
6:49/mi
1:03:43
↑ 67↓ 78
20K· 12.43 mi
7:04/mi
1:25:41
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:30:25
↑ 19↓ 370.5%
25K· 15.53 mi
7:09/mi
1:47:46
↑ 66↓ 880.2%
30K· 18.64 mi
7:20/mi
2:10:34
↑ 181↓ 1480.2%
20M
7:30/mi
2:20:46
↑ 64↓ 500.2%
21M
7:51/mi
2:28:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:34:11
↑ 17↓ 861.7%
23M
7:46/mi
2:43:55
↑ 23↓ 630.6%
24M
7:31/mi
2:51:26
↓ 821.3%
40K· 24.85 mi
7:34/mi
2:57:54
↓ 200.3%
25.2M
8:13/mi
3:00:44
↑ 13↓ 160.2%
Finish· 26.22 mi
7:01/mi
3:07:53
↑ 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
Time1:30:25
Pace6:54 /mi
2nd Half
Distance13.11 mi
Time1:37:28
Pace7:26 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4821:226:5321:22
6:53
-
10K
6.21 mi11:08:5842:326:5121:10
6:49
-0:04
15K
9.32 mi11:30:091:03:436:5021:11
6:49
0:00
20K
12.43 mi11:52:071:25:416:5421:58
7:04
+0:15
Half
13.11 mi11:56:511:30:256:544:44
6:56
-0:08
25K
15.53 mi12:14:121:47:466:5617:21
7:09
+0:13
30K
18.64 mi12:37:002:10:347:0022:48
7:20
+0:11
20M
20.00 mi12:47:122:20:467:0210:12
7:30
+0:10
21M
21.00 mi12:55:032:28:377:057:51
7:51
+0:21
35K
21.75 mi13:00:372:34:117:055:34
7:26
-0:25
23M
23.00 mi13:10:212:43:557:089:44
7:46
+0:20
24M
24.00 mi13:17:522:51:267:097:31
7:31
-0:15
40K
24.85 mi13:24:202:57:547:096:28
7:34
+0:03
25.2M
25.20 mi13:27:103:00:447:102:50
8:13
+0:39
Finish
26.22 mi13:34:193:07:537:107:09
7:01
-1:12

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

6:49 /mi

Average Pace

7:10 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:34

52% of race

Time at Steady Pace

1:03:26

34% of race

Time at Slower Pace

26:53

14% of race

Average Pace: 7:10 /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 mi10:47:4821:226:5321:22
6:53
#6911
10K
6.21 mi11:08:5842:326:5121:10
6:49
#6721
15K
9.32 mi11:30:091:03:436:5021:11
6:49
#6536
20K
12.43 mi11:52:071:25:416:5421:58
7:04
#6782
Half
13.11 mi11:56:511:30:256:544:44
6:56
#6812
25K
15.53 mi12:14:121:47:466:5617:21
7:09
#6851
30K
18.64 mi12:37:002:10:347:0022:48
7:20
#6704
20M
20.00 mi12:47:122:20:467:0210:12
7:30
#6639
21M
21.00 mi12:55:032:28:377:057:51
7:51
#6552
35K
21.75 mi13:00:372:34:117:055:34
7:26
#6563
23M
23.00 mi13:10:212:43:557:089:44
7:46
#6570
24M
24.00 mi13:17:522:51:267:097:31
7:31
#6575
40K
24.85 mi13:24:202:57:547:096:28
7:34
#6549
25.2M
25.20 mi13:27:103:00:447:102:50
8:13
#6529
Finish
26.22 mi13:34:193:07:537:107:09
7:01
#6459
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi69116596596290(Top 22%)583(Top 5%)583(Top 11%)
10K6.21 mi3.10 mi6721+190630+29630+296554(Top 23%)616(Top 5%)616(Top 11%)
15K9.32 mi3.11 mi6536+185612+18612+186290(Top 22%)583(Top 5%)583(Top 11%)
20K12.43 mi3.11 mi6782-246653-41653-417349(Top 26%)873(Top 7%)873(Top 16%)
Half13.11 mi0.68 mi6812-30663-10663-107195(Top 25%)819(Top 7%)819(Top 15%)
25K15.53 mi2.42 mi6851-39702-39702-397323(Top 26%)967(Top 8%)967(Top 18%)
30K18.64 mi3.11 mi6704+147704-2704-26690(Top 24%)897(Top 7%)897(Top 16%)
20M20.00 mi1.36 mi6639+65711-7711-77066(Top 25%)1166(Top 10%)1166(Top 21%)
21M21.00 mi1.00 mi6552+87714-3714-36514(Top 23%)1105(Top 9%)1105(Top 20%)
35K21.75 mi0.75 mi6563-11734-20734-208233(Top 29%)1761(Top 14%)1761(Top 32%)
23M23.00 mi1.25 mi6570-7764-30764-308408(Top 30%)1986(Top 16%)1986(Top 36%)
24M24.00 mi1.00 mi6575-5788-24788-247838(Top 28%)1787(Top 15%)1787(Top 33%)
40K24.85 mi0.85 mi6549+26801-13801-137192(Top 25%)1622(Top 13%)1622(Top 30%)
25.2M25.20 mi0.35 mi6529+20807-6807-67185(Top 25%)1701(Top 14%)1701(Top 31%)
Finish26.22 mi1.02 mi6459+70812-5812-55855(Top 21%)1191(Top 10%)1191(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21story building
+97ft-345ft

Overall

6290

Females

583

F18-39

583

5K→10K

3.1 - 6.2 mi

Top 23%
×5story building
+79ft-138ft

Overall

6554

Females

616

F18-39

616

10K→15K

6.2 - 9.3 mi

Top 22%
×3story building
+67ft-78ft

Overall

6290

Females

583

F18-39

583

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

7349

Females

873

F18-39

873

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

7195

Females

819

F18-39

819

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

7323

Females

967

F18-39

967

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6690

Females

897

F18-39

897

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7066

Females

1166

F18-39

1166

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6514

Females

1105

F18-39

1105

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8233

Females

1761

F18-39

1761

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8408

Females

1986

F18-39

1986

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7838

Females

1787

F18-39

1787

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7192

Females

1622

F18-39

1622

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7185

Females

1701

F18-39

1701

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5855

Females

1191

F18-39

1191

Passing Analysis

Category:
Athletes Passed
1624
Passed By
1172
Net Change
+452
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6911
5K → 10K293103+190#6911#6721
10K → 15K25772+185#6721#6536
15K → 20K59305-246#6536#6782
20K → Half1646-30#6782#6812
Half → 25K110149-39#6812#6851
25K → 30K24598+147#6851#6704
30K → 20M12055+65#6704#6639
20M → 21M12033+87#6639#6552
21M → 35K4859-11#6552#6563
35K → 23M8188-7#6563#6570
23M → 24M6469-5#6570#6575
24M → 40K6640+26#6575#6549
40K → 25.2M3717+20#6549#6529
25.2M → Finish10838+70#6529#6459
TOTALS16241172+452
📊

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