Boston Marathon logo
BOSTON MARATHON 2023

Brittany Fiore

Bib: 25348•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
36:24
Rank: #26335
Start → 5K
36:24 | 11:43/mi
10K· 6.21 mi
1:11:28
Rank: #26097 (+238)
5K → 10K
35:04 | 11:17/mi
15K· 9.32 mi
1:51:11
Rank: #26254 (-157)
10K → 15K
39:43 | 12:47/mi
20K· 12.43 mi
2:30:42
Rank: #26219 (+35)
15K → 20K
39:31 | 12:43/mi
Half· 13.11 mi
2:38:30
Rank: #26198 (+21)
20K → Half
7:48 | 11:26/mi
25K· 15.53 mi
3:12:42
Rank: #26255 (-57)
Half → 25K
34:12 | 14:06/mi
30K· 18.64 mi
3:55:56
Rank: #26219 (+36)
25K → 30K
43:14 | 13:55/mi
20M
4:15:17
Rank: #26203 (+16)
30K → 20M
19:21 | 14:14/mi
21M
4:30:40
Rank: #26200 (+3)
20M → 21M
15:23 | 15:23/mi
35K· 21.75 mi
4:40:58
Rank: #26204 (-4)
21M → 35K
10:18 | 13:46/mi
23M
4:58:15
Rank: #26190 (+14)
35K → 23M
17:17 | 13:48/mi
24M
5:10:44
Rank: #26168 (+22)
23M → 24M
12:29 | 12:29/mi
40K· 24.85 mi
5:22:41
Rank: #26155 (+13)
24M → 40K
11:57 | 13:59/mi
25.2M
5:27:39
Rank: #26152 (+3)
40K → 25.2M
4:58 | 14:24/mi
Finish· 26.22 mi
5:40:12
Rank: #26136 (+16)
25.2M → Finish
12:33 | 12:19/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
Time2:38:30
Pace12:05 /mi
2nd Half
Distance13.11 mi
Time3:01:42
Pace13:52 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1936:2411:4336:24
11:43
-
10K
6.21 mi12:31:231:11:2811:3035:04
11:17
-0:26
15K
9.32 mi13:11:061:51:1111:5639:43
12:47
+1:30
20K
12.43 mi13:50:372:30:4212:0839:31
12:43
-0:04
Half
13.11 mi13:58:252:38:3012:057:48
11:26
-1:17
25K
15.53 mi14:32:373:12:4212:2434:12
14:06
+2:40
30K
18.64 mi15:15:513:55:5612:3943:14
13:55
-0:11
20M
20.00 mi15:35:124:15:1712:4619:21
14:14
+0:19
21M
21.00 mi15:50:354:30:4012:5315:23
15:23
+1:09
35K
21.75 mi16:00:534:40:5812:5510:18
13:46
-1:37
23M
23.00 mi16:18:104:58:1512:5817:17
13:48
+0:02
24M
24.00 mi16:30:395:10:4412:5712:29
12:29
-1:19
40K
24.85 mi16:42:365:22:4112:5911:57
13:59
+1:30
25.2M
25.20 mi16:47:345:27:3913:004:58
14:24
+0:25
Finish
26.22 mi17:00:075:40:1212:5912:33
12:19
-2:05

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

11:17 /mi

Average Pace

12:59 /mi

Slowest Pace

15:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:32

54% of race

Time at Steady Pace

2:16:19

40% of race

Time at Slower Pace

20:21

6% of race

Average Pace: 12:58 /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 mi11:56:1936:2411:4336:24
11:43
#26335
10K
6.21 mi12:31:231:11:2811:3035:04
11:17
#26097
15K
9.32 mi13:11:061:51:1111:5639:43
12:47
#26254
20K
12.43 mi13:50:372:30:4212:0839:31
12:43
#26219
Half
13.11 mi13:58:252:38:3012:057:48
11:26
#26198
25K
15.53 mi14:32:373:12:4212:2434:12
14:06
#26255
30K
18.64 mi15:15:513:55:5612:3943:14
13:55
#26219
20M
20.00 mi15:35:124:15:1712:4619:21
14:14
#26203
21M
21.00 mi15:50:354:30:4012:5315:23
15:23
#26200
35K
21.75 mi16:00:534:40:5812:5510:18
13:46
#26204
23M
23.00 mi16:18:104:58:1512:5817:17
13:48
#26190
24M
24.00 mi16:30:395:10:4412:5712:29
12:29
#26168
40K
24.85 mi16:42:365:22:4112:5911:57
13:59
#26155
25.2M
25.20 mi16:47:345:27:3913:004:58
14:24
#26152
Finish
26.22 mi17:00:075:40:1212:5912:33
12:19
#26136
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26335112521125226429(Top 99%)11317(Top 99%)11317(Top 232%)
10K6.21 mi3.10 mi26097+23811103+14911103+14925777(Top 97%)10899(Top 95%)10899(Top 223%)
15K9.32 mi3.11 mi26254-15711202-9911202-9926429(Top 99%)11317(Top 99%)11317(Top 232%)
20K12.43 mi3.11 mi26219+3511179+2311179+2326096(Top 98%)11111(Top 97%)11111(Top 227%)
Half13.11 mi0.68 mi26198+2111163+1611163+1625443(Top 96%)10757(Top 94%)10757(Top 220%)
25K15.53 mi2.42 mi26255-5711196-3311196-3326387(Top 99%)11295(Top 99%)11295(Top 231%)
30K18.64 mi3.11 mi26219+3611180+1611180+1625990(Top 98%)11097(Top 97%)11097(Top 227%)
20M20.00 mi1.36 mi26203+1611178+211178+225971(Top 98%)11109(Top 97%)11109(Top 227%)
21M21.00 mi1.00 mi26200+311177+111177+125952(Top 97%)11084(Top 97%)11084(Top 227%)
35K21.75 mi0.75 mi26204-411184-711184-726052(Top 98%)11160(Top 98%)11160(Top 229%)
23M23.00 mi1.25 mi26190+1411179+511179+525704(Top 97%)11004(Top 96%)11004(Top 225%)
24M24.00 mi1.00 mi26168+2211168+1111168+1125051(Top 94%)10713(Top 94%)10713(Top 219%)
40K24.85 mi0.85 mi26155+1311160+811160+825679(Top 96%)11015(Top 96%)11015(Top 226%)
25.2M25.20 mi0.35 mi26152+3111601116025339(Top 95%)10851(Top 95%)10851(Top 222%)
Finish26.22 mi1.02 mi26136+1611155+511155+525531(Top 96%)10936(Top 96%)10936(Top 224%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21stories
+97ft-345ft

Overall

26429

Females

11317

F18-39

11317

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

25777

Females

10899

F18-39

10899

10K→15K

6.2 - 9.3 mi

Top 99%
×3stories
+67ft-78ft

Overall

26429

Females

11317

F18-39

11317

15K→20K

9.3 - 12.4 mi

Top 98%
×5stories
+106ft-86ft

Overall

26096

Females

11111

F18-39

11111

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

25443

Females

10757

F18-39

10757

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

26387

Females

11295

F18-39

11295

25K→30K

15.5 - 18.6 mi

Top 98%
×9stories
+181ft-148ft

Overall

25990

Females

11097

F18-39

11097

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

25971

Females

11109

F18-39

11109

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25952

Females

11084

F18-39

11084

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

26052

Females

11160

F18-39

11160

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

25704

Females

11004

F18-39

11004

23M→24M

23.0 - 24.0 mi

Top 94%
×6stories
+12ft-82ft

Overall

25051

Females

10713

F18-39

10713

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25679

Females

11015

F18-39

11015

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25339

Females

10851

F18-39

10851

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

25531

Females

10936

F18-39

10936

Passing Analysis

Category:
Athletes Passed
552
Passed By
353
Net Change
+199
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26335
5K → 10K2468+238#26335#26097
10K → 15K13170-157#26097#26254
15K → 20K6227+35#26254#26219
20K → Half254+21#26219#26198
Half → 25K1067-57#26198#26255
25K → 30K5519+36#26255#26219
30K → 20M248+16#26219#26203
20M → 21M1512+3#26203#26200
21M → 35K913-4#26200#26204
35K → 23M206+14#26204#26190
23M → 24M253+22#26190#26168
24M → 40K218+13#26168#26155
40K → 25.2M63+3#26155#26152
25.2M → Finish215+16#26152#26136
TOTALS552353+199
📊

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