Boston Marathon logo
BOSTON MARATHON 2023

Janet Atkinson

Bib: 18366•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 48%
Gender (Female)
#0 / 11423
Top 32%
Masters (Masters Women)
#0 / 6539
Top 18%
Division (F50-54)
#0 / 1207
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:50
Rank: #13990
Start → 5K
24:50 | 8:00/mi
10K· 6.21 mi
49:25
Rank: #14020 (-30)
5K → 10K
24:35 | 7:55/mi
15K· 9.32 mi
1:13:53
Rank: #13797 (+223)
10K → 15K
24:28 | 7:53/mi
20K· 12.43 mi
1:38:40
Rank: #13616 (+181)
15K → 20K
24:47 | 7:59/mi
Half· 13.11 mi
1:43:57
Rank: #13556 (+60)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:03:25
Rank: #13427 (+129)
Half → 25K
19:28 | 8:02/mi
30K· 18.64 mi
2:29:06
Rank: #13294 (+133)
25K → 30K
25:41 | 8:16/mi
20M
2:40:17
Rank: #13168 (+126)
30K → 20M
11:11 | 8:14/mi
21M
2:49:08
Rank: #13085 (+83)
20M → 21M
8:51 | 8:51/mi
35K· 21.75 mi
2:55:18
Rank: #13100 (-15)
21M → 35K
6:10 | 8:15/mi
23M
3:05:49
Rank: #13045 (+55)
35K → 23M
10:31 | 8:24/mi
24M
3:14:02
Rank: #13017 (+28)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
3:21:05
Rank: #12956 (+61)
24M → 40K
7:03 | 8:15/mi
25.2M
3:24:10
Rank: #12935 (+21)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:32:23
Rank: #12903 (+32)
25.2M → Finish
8:13 | 8:04/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
Time1:43:57
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:48:26
Pace8:16 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2524:508:0024:50
8:00
-
10K
6.21 mi11:44:0049:257:5724:35
7:55
-0:05
15K
9.32 mi12:08:281:13:537:5624:28
7:53
-0:02
20K
12.43 mi12:33:151:38:407:5624:47
7:59
+0:06
Half
13.11 mi12:38:321:43:577:565:17
7:45
-0:14
25K
15.53 mi12:58:002:03:257:5719:28
8:02
+0:17
30K
18.64 mi13:23:412:29:068:0025:41
8:16
+0:14
20M
20.00 mi13:34:522:40:178:0111:11
8:14
-0:02
21M
21.00 mi13:43:432:49:088:038:51
8:51
+0:37
35K
21.75 mi13:49:532:55:188:046:10
8:15
-0:36
23M
23.00 mi14:00:243:05:498:0510:31
8:24
+0:09
24M
24.00 mi14:08:373:14:028:058:13
8:13
-0:11
40K
24.85 mi14:15:403:21:058:057:03
8:15
+0:02
25.2M
25.20 mi14:18:453:24:108:063:05
8:56
+0:41
Finish
26.22 mi14:26:583:32:238:068:13
8:04
-0:52

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

7:45 /mi

Average Pace

8:06 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:27

94% of race

Time at Steady Pace

11:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi11:19:2524:508:0024:50
8:00
#13990
10K
6.21 mi11:44:0049:257:5724:35
7:55
#14020
15K
9.32 mi12:08:281:13:537:5624:28
7:53
#13797
20K
12.43 mi12:33:151:38:407:5624:47
7:59
#13616
Half
13.11 mi12:38:321:43:577:565:17
7:45
#13556
25K
15.53 mi12:58:002:03:257:5719:28
8:02
#13427
30K
18.64 mi13:23:412:29:068:0025:41
8:16
#13294
20M
20.00 mi13:34:522:40:178:0111:11
8:14
#13168
21M
21.00 mi13:43:432:49:088:038:51
8:51
#13085
35K
21.75 mi13:49:532:55:188:046:10
8:15
#13100
23M
23.00 mi14:00:243:05:498:0510:31
8:24
#13045
24M
24.00 mi14:08:373:14:028:058:13
8:13
#13017
40K
24.85 mi14:15:403:21:058:057:03
8:15
#12956
25.2M
25.20 mi14:18:453:24:108:063:05
8:56
#12935
Finish
26.22 mi14:26:583:32:238:068:13
8:04
#12903
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi139904027402713331(Top 50%)3691(Top 32%)3691(Top 306%)
10K6.21 mi3.10 mi14020-304058-314058-3114105(Top 53%)4118(Top 36%)4118(Top 341%)
15K9.32 mi3.11 mi13797+2233944+1143944+11413331(Top 50%)3691(Top 32%)3691(Top 306%)
20K12.43 mi3.11 mi13616+1813856+883856+8813256(Top 50%)3687(Top 32%)3687(Top 305%)
Half13.11 mi0.68 mi13556+603812+443812+4412356(Top 46%)3146(Top 28%)3146(Top 261%)
25K15.53 mi2.42 mi13427+1293761+513761+5113001(Top 49%)3634(Top 32%)3634(Top 301%)
30K18.64 mi3.11 mi13294+1333724+373724+3712828(Top 48%)3659(Top 32%)3659(Top 303%)
20M20.00 mi1.36 mi13168+1263665+593665+5911927(Top 45%)3243(Top 28%)3243(Top 269%)
21M21.00 mi1.00 mi13085+833631+343631+3412589(Top 47%)3742(Top 33%)3742(Top 310%)
35K21.75 mi0.75 mi13100-153654-233654-2313827(Top 52%)4489(Top 39%)4489(Top 372%)
23M23.00 mi1.25 mi13045+553652+23652+212624(Top 47%)3874(Top 34%)3874(Top 321%)
24M24.00 mi1.00 mi13017+283661-93661-912783(Top 48%)4022(Top 35%)4022(Top 333%)
40K24.85 mi0.85 mi12956+613650+113650+1111732(Top 44%)3544(Top 31%)3544(Top 294%)
25.2M25.20 mi0.35 mi12935+213644+63644+612310(Top 46%)3921(Top 34%)3921(Top 325%)
Finish26.22 mi1.02 mi12903+323644364412608(Top 47%)4025(Top 35%)4025(Top 333%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

13331

Females

3691

F50-54

3691

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14105

Females

4118

F50-54

4118

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

13331

Females

3691

F50-54

3691

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13256

Females

3687

F50-54

3687

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

12356

Females

3146

F50-54

3146

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13001

Females

3634

F50-54

3634

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

12828

Females

3659

F50-54

3659

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11927

Females

3243

F50-54

3243

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12589

Females

3742

F50-54

3742

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13827

Females

4489

F50-54

4489

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12624

Females

3874

F50-54

3874

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12783

Females

4022

F50-54

4022

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11732

Females

3544

F50-54

3544

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12310

Females

3921

F50-54

3921

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12608

Females

4025

F50-54

4025

Passing Analysis

Category:
Athletes Passed
2114
Passed By
1027
Net Change
+1087
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13990
5K → 10K273303-30#13990#14020
10K → 15K31895+223#14020#13797
15K → 20K26584+181#13797#13616
20K → Half7111+60#13616#13556
Half → 25K19263+129#13556#13427
25K → 30K253120+133#13427#13294
30K → 20M15428+126#13294#13168
20M → 21M13451+83#13168#13085
21M → 35K5368-15#13085#13100
35K → 23M12065+55#13100#13045
23M → 24M7143+28#13045#13017
24M → 40K9837+61#13017#12956
40K → 25.2M4019+21#12956#12935
25.2M → Finish7240+32#12935#12903
TOTALS21141027+1087
📊

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