Boston Marathon logo
BOSTON MARATHON 2023

Tracy Whipple

Bib: 20948•F

CO

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:25
Rank: #19611
Start → 5K
27:25 | 8:49/mi
10K· 6.21 mi
54:39
Rank: #19655 (-44)
5K → 10K
27:14 | 8:46/mi
15K· 9.32 mi
1:22:08
Rank: #19664 (-9)
10K → 15K
27:29 | 8:51/mi
20K· 12.43 mi
1:50:10
Rank: #19669 (-5)
15K → 20K
28:02 | 9:01/mi
Half· 13.11 mi
1:56:18
Rank: #19724 (-55)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:18:23
Rank: #19668 (+56)
Half → 25K
22:05 | 9:06/mi
30K· 18.64 mi
2:48:00
Rank: #19648 (+20)
25K → 30K
29:37 | 9:32/mi
20M
3:00:48
Rank: #19548 (+100)
30K → 20M
12:48 | 9:25/mi
21M
3:10:56
Rank: #19483 (+65)
20M → 21M
10:08 | 10:08/mi
35K· 21.75 mi
3:17:49
Rank: #19447 (+36)
21M → 35K
6:53 | 9:12/mi
23M
3:29:51
Rank: #19422 (+25)
35K → 23M
12:02 | 9:37/mi
24M
3:39:07
Rank: #19365 (+57)
23M → 24M
9:16 | 9:16/mi
40K· 24.85 mi
3:47:12
Rank: #19338 (+27)
24M → 40K
8:05 | 9:27/mi
25.2M
3:50:37
Rank: #19303 (+35)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
4:00:00
Rank: #19316 (-13)
25.2M → Finish
9:23 | 9:12/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
Time1:56:18
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:03:42
Pace9:26 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4227:258:4927:25
8:49
-
10K
6.21 mi11:46:5654:398:4827:14
8:46
-0:03
15K
9.32 mi12:14:251:22:088:4927:29
8:51
+0:05
20K
12.43 mi12:42:271:50:108:5228:02
9:01
+0:10
Half
13.11 mi12:48:351:56:188:526:08
8:59
-0:02
25K
15.53 mi13:10:402:18:238:5422:05
9:06
+0:07
30K
18.64 mi13:40:172:48:009:0129:37
9:32
+0:26
20M
20.00 mi13:53:053:00:489:0212:48
9:25
-0:07
21M
21.00 mi14:03:133:10:569:0610:08
10:08
+0:43
35K
21.75 mi14:10:063:17:499:066:53
9:12
-0:56
23M
23.00 mi14:22:083:29:519:0712:02
9:37
+0:25
24M
24.00 mi14:31:243:39:079:089:16
9:16
-0:21
40K
24.85 mi14:39:293:47:129:088:05
9:27
+0:11
25.2M
25.20 mi14:42:543:50:379:093:25
9:54
+0:27
Finish
26.22 mi14:52:174:00:009:109:23
9:12
-0:42

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

8:46 /mi

Average Pace

9:10 /mi

Slowest Pace

10:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:27

94% of race

Time at Steady Pace

13:33

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:09 /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 mi11:19:4227:258:4927:25
8:49
#19611
10K
6.21 mi11:46:5654:398:4827:14
8:46
#19655
15K
9.32 mi12:14:251:22:088:4927:29
8:51
#19664
20K
12.43 mi12:42:271:50:108:5228:02
9:01
#19669
Half
13.11 mi12:48:351:56:188:526:08
8:59
#19724
25K
15.53 mi13:10:402:18:238:5422:05
9:06
#19668
30K
18.64 mi13:40:172:48:009:0129:37
9:32
#19648
20M
20.00 mi13:53:053:00:489:0212:48
9:25
#19548
21M
21.00 mi14:03:133:10:569:0610:08
10:08
#19483
35K
21.75 mi14:10:063:17:499:066:53
9:12
#19447
23M
23.00 mi14:22:083:29:519:0712:02
9:37
#19422
24M
24.00 mi14:31:243:39:079:089:16
9:16
#19365
40K
24.85 mi14:39:293:47:129:088:05
9:27
#19338
25.2M
25.20 mi14:42:543:50:379:093:25
9:54
#19303
Finish
26.22 mi14:52:174:00:009:109:23
9:12
#19316
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi196117587758719790(Top 74%)7563(Top 66%)7563(Top 627%)
10K6.21 mi3.10 mi19655-447566+217566+2119779(Top 74%)7570(Top 66%)7570(Top 627%)
15K9.32 mi3.11 mi19664-97551+157551+1519790(Top 74%)7563(Top 66%)7563(Top 627%)
20K12.43 mi3.11 mi19669-57524+277524+2719821(Top 74%)7572(Top 66%)7572(Top 627%)
Half13.11 mi0.68 mi19724-557547-237547-2320455(Top 77%)7952(Top 70%)7952(Top 659%)
25K15.53 mi2.42 mi19668+567521+267521+2619469(Top 73%)7413(Top 65%)7413(Top 614%)
30K18.64 mi3.11 mi19648+207515+67515+619565(Top 73%)7516(Top 66%)7516(Top 623%)
20M20.00 mi1.36 mi19548+1007478+377478+3718568(Top 70%)7069(Top 62%)7069(Top 586%)
21M21.00 mi1.00 mi19483+657450+287450+2818521(Top 70%)7072(Top 62%)7072(Top 586%)
35K21.75 mi0.75 mi19447+367432+187432+1818799(Top 71%)7289(Top 64%)7289(Top 604%)
23M23.00 mi1.25 mi19422+257418+147418+1418795(Top 71%)7299(Top 64%)7299(Top 605%)
24M24.00 mi1.00 mi19365+577395+237395+2318368(Top 69%)7101(Top 62%)7101(Top 588%)
40K24.85 mi0.85 mi19338+277393+27393+218215(Top 68%)7068(Top 62%)7068(Top 586%)
25.2M25.20 mi0.35 mi19303+357374+197374+1917118(Top 64%)6509(Top 57%)6509(Top 539%)
Finish26.22 mi1.02 mi19316-137390-167390-1618989(Top 71%)7441(Top 65%)7441(Top 616%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

19790

Females

7563

F50-54

7563

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19779

Females

7570

F50-54

7570

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

19790

Females

7563

F50-54

7563

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19821

Females

7572

F50-54

7572

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20455

Females

7952

F50-54

7952

Half→25K

13.1 - 15.5 mi

Top 73%
×4stories
+66ft-88ft

Overall

19469

Females

7413

F50-54

7413

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19565

Females

7516

F50-54

7516

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

18568

Females

7069

F50-54

7069

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18521

Females

7072

F50-54

7072

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

18799

Females

7289

F50-54

7289

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18795

Females

7299

F50-54

7299

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18368

Females

7101

F50-54

7101

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18215

Females

7068

F50-54

7068

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17118

Females

6509

F50-54

6509

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

18989

Females

7441

F50-54

7441

Passing Analysis

Category:
Athletes Passed
1593
Passed By
1298
Net Change
+295
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19611
5K → 10K292336-44#19611#19655
10K → 15K180189-9#19655#19664
15K → 20K163168-5#19664#19669
20K → Half1671-55#19669#19724
Half → 25K14589+56#19724#19668
25K → 30K175155+20#19668#19648
30K → 20M13333+100#19648#19548
20M → 21M10439+65#19548#19483
21M → 35K6226+36#19483#19447
35K → 23M8863+25#19447#19422
23M → 24M8326+57#19422#19365
24M → 40K6235+27#19365#19338
40K → 25.2M4712+35#19338#19303
25.2M → Finish4356-13#19303#19316
TOTALS15931298+295
📊

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