Boston Marathon logo
BOSTON MARATHON 2023

Clara Fitzgerald

Bib: 13263•F

ON

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
Masters (Masters Women)
#0 / 6539
Top 25%
Division (F50-54)
#0 / 1207
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:00
Rank: #11700
Start → 5K
24:00 | 7:43/mi
10K· 6.21 mi
47:45
Rank: #11674 (+26)
5K → 10K
23:45 | 7:39/mi
15K· 9.32 mi
1:11:54
Rank: #11913 (-239)
10K → 15K
24:09 | 7:46/mi
20K· 12.43 mi
1:36:37
Rank: #12164 (-251)
15K → 20K
24:43 | 7:57/mi
Half· 13.11 mi
1:42:03
Rank: #12278 (-114)
20K → Half
5:26 | 7:57/mi
25K· 15.53 mi
2:02:52
Rank: #13136 (-858)
Half → 25K
20:49 | 8:35/mi
30K· 18.64 mi
2:28:54
Rank: #13205 (-69)
25K → 30K
26:02 | 8:23/mi
20M
2:40:59
Rank: #13417 (-212)
30K → 20M
12:05 | 8:54/mi
21M
2:49:53
Rank: #13371 (+46)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:55:59
Rank: #13352 (+19)
21M → 35K
6:06 | 8:09/mi
23M
3:07:26
Rank: #13584 (-232)
35K → 23M
11:27 | 9:09/mi
24M
3:16:29
Rank: #13771 (-187)
23M → 24M
9:03 | 9:03/mi
40K· 24.85 mi
3:24:38
Rank: #14003 (-232)
24M → 40K
8:09 | 9:32/mi
25.2M
3:28:07
Rank: #14084 (-81)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:36:56
Rank: #14168 (-84)
25.2M → Finish
8:49 | 8:39/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
Time1:42:03
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:54:53
Pace8:46 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0224:007:4324:00
7:43
-
10K
6.21 mi11:15:4747:457:4123:45
7:39
-0:04
15K
9.32 mi11:39:561:11:547:4324:09
7:46
+0:07
20K
12.43 mi12:04:391:36:377:4624:43
7:57
+0:11
Half
13.11 mi12:10:051:42:037:475:26
7:57
0:00
25K
15.53 mi12:30:542:02:527:5520:49
8:35
+0:38
30K
18.64 mi12:56:562:28:547:5926:02
8:23
-0:12
20M
20.00 mi13:09:012:40:598:0312:05
8:54
+0:31
21M
21.00 mi13:17:552:49:538:058:54
8:54
0:00
35K
21.75 mi13:24:012:55:598:066:06
8:09
-0:45
23M
23.00 mi13:35:283:07:268:0911:27
9:09
+1:00
24M
24.00 mi13:44:313:16:298:119:03
9:03
-0:06
40K
24.85 mi13:52:403:24:388:148:09
9:32
+0:29
25.2M
25.20 mi13:56:093:28:078:163:29
10:06
+0:34
Finish
26.22 mi14:04:583:36:568:178:49
8:39
-1:27

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

7:39 /mi

Average Pace

8:17 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:09

50% of race

Time at Steady Pace

1:16:39

35% of race

Time at Slower Pace

32:08

15% of race

Average Pace: 8:16 /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 mi10:52:0224:007:4324:00
7:43
#11700
10K
6.21 mi11:15:4747:457:4123:45
7:39
#11674
15K
9.32 mi11:39:561:11:547:4324:09
7:46
#11913
20K
12.43 mi12:04:391:36:377:4624:43
7:57
#12164
Half
13.11 mi12:10:051:42:037:475:26
7:57
#12278
25K
15.53 mi12:30:542:02:527:5520:49
8:35
#13136
30K
18.64 mi12:56:562:28:547:5926:02
8:23
#13205
20M
20.00 mi13:09:012:40:598:0312:05
8:54
#13417
21M
21.00 mi13:17:552:49:538:058:54
8:54
#13371
35K
21.75 mi13:24:012:55:598:066:06
8:09
#13352
23M
23.00 mi13:35:283:07:268:0911:27
9:09
#13584
24M
24.00 mi13:44:313:16:298:119:03
9:03
#13771
40K
24.85 mi13:52:403:24:388:148:09
9:32
#14003
25.2M
25.20 mi13:56:093:28:078:163:29
10:06
#14084
Finish
26.22 mi14:04:583:36:568:178:49
8:39
#14168
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi117002698269812514(Top 47%)3197(Top 28%)3197(Top 265%)
10K6.21 mi3.10 mi11674+262696+22696+211765(Top 44%)2741(Top 24%)2741(Top 227%)
15K9.32 mi3.11 mi11913-2392845-1492845-14912514(Top 47%)3197(Top 28%)3197(Top 265%)
20K12.43 mi3.11 mi12164-2513018-1733018-17313092(Top 49%)3599(Top 32%)3599(Top 298%)
Half13.11 mi0.68 mi12278-1143084-663084-6613991(Top 53%)4099(Top 36%)4099(Top 340%)
25K15.53 mi2.42 mi13136-8583574-4903574-49016730(Top 63%)5850(Top 51%)5850(Top 485%)
30K18.64 mi3.11 mi13205-693671-973671-9713568(Top 51%)4071(Top 36%)4071(Top 337%)
20M20.00 mi1.36 mi13417-2123811-1403811-14016000(Top 60%)5581(Top 49%)5581(Top 462%)
21M21.00 mi1.00 mi13371+463795+163795+1612806(Top 48%)3854(Top 34%)3854(Top 319%)
35K21.75 mi0.75 mi13352+193803-83803-813196(Top 50%)4117(Top 36%)4117(Top 341%)
23M23.00 mi1.25 mi13584-2323966-1633966-16316772(Top 63%)6164(Top 54%)6164(Top 511%)
24M24.00 mi1.00 mi13771-1874115-1494115-14917453(Top 66%)6601(Top 58%)6601(Top 547%)
40K24.85 mi0.85 mi14003-2324271-1564271-15618441(Top 69%)7173(Top 63%)7173(Top 594%)
25.2M25.20 mi0.35 mi14084-814327-564327-5617777(Top 67%)6827(Top 60%)6827(Top 566%)
Finish26.22 mi1.02 mi14168-844401-744401-7416260(Top 61%)5967(Top 52%)5967(Top 494%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12514

Females

3197

F50-54

3197

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11765

Females

2741

F50-54

2741

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12514

Females

3197

F50-54

3197

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13092

Females

3599

F50-54

3599

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

13991

Females

4099

F50-54

4099

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16730

Females

5850

F50-54

5850

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13568

Females

4071

F50-54

4071

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

16000

Females

5581

F50-54

5581

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12806

Females

3854

F50-54

3854

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13196

Females

4117

F50-54

4117

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16772

Females

6164

F50-54

6164

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

17453

Females

6601

F50-54

6601

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18441

Females

7173

F50-54

7173

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17777

Females

6827

F50-54

6827

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16260

Females

5967

F50-54

5967

Passing Analysis

Category:
Athletes Passed
1054
Passed By
3522
Net Change
-2468
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11700
5K → 10K302276+26#11700#11674
10K → 15K110349-239#11674#11913
15K → 20K95346-251#11913#12164
20K → Half6120-114#12164#12278
Half → 25K16874-858#12278#13136
25K → 30K170239-69#13136#13205
30K → 20M39251-212#13205#13417
20M → 21M11367+46#13417#13371
21M → 35K6445+19#13371#13352
35K → 23M38270-232#13352#13584
23M → 24M32219-187#13584#13771
24M → 40K22254-232#13771#14003
40K → 25.2M1394-81#14003#14084
25.2M → Finish34118-84#14084#14168
TOTALS10543522-2468
📊

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