Boston Marathon logo
BOSTON MARATHON 2023

Alberta Ancrum

Bib: 24049•F

NY

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:53
Rank: #20349
Start → 5K
27:53 | 8:58/mi
10K· 6.21 mi
55:55
Rank: #20652 (-303)
5K → 10K
28:02 | 9:01/mi
15K· 9.32 mi
1:24:53
Rank: #21058 (-406)
10K → 15K
28:58 | 9:19/mi
20K· 12.43 mi
1:55:20
Rank: #21448 (-390)
15K → 20K
30:27 | 9:48/mi
Half· 13.11 mi
2:01:46
Rank: #21461 (-13)
20K → Half
6:26 | 9:26/mi
25K· 15.53 mi
2:27:07
Rank: #21805 (-344)
Half → 25K
25:21 | 10:27/mi
30K· 18.64 mi
3:01:40
Rank: #22207 (-402)
25K → 30K
34:33 | 11:07/mi
20M
3:16:56
Rank: #22277 (-70)
30K → 20M
15:16 | 11:14/mi
21M
3:29:49
Rank: #22401 (-124)
20M → 21M
12:53 | 12:53/mi
35K· 21.75 mi
3:38:03
Rank: #22436 (-35)
21M → 35K
8:14 | 11:00/mi
23M
3:52:16
Rank: #22483 (-47)
35K → 23M
14:13 | 11:21/mi
24M
4:03:28
Rank: #22527 (-44)
23M → 24M
11:12 | 11:12/mi
40K· 24.85 mi
4:12:10
Rank: #22453 (+74)
24M → 40K
8:42 | 10:11/mi
25.2M
4:15:59
Rank: #22419 (+34)
40K → 25.2M
3:49 | 11:04/mi
Finish· 26.22 mi
4:26:05
Rank: #22392 (+27)
25.2M → Finish
10:06 | 9:55/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
Time2:01:46
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:24:19
Pace11:01 /mi
📊Positive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0327:538:5827:53
8:58
-
10K
6.21 mi12:11:0555:559:0028:02
9:01
+0:03
15K
9.32 mi12:40:031:24:539:0628:58
9:19
+0:18
20K
12.43 mi13:10:301:55:209:1730:27
9:48
+0:29
Half
13.11 mi13:16:562:01:469:176:26
9:26
-0:22
25K
15.53 mi13:42:172:27:079:2825:21
10:27
+1:01
30K
18.64 mi14:16:503:01:409:4534:33
11:07
+0:40
20M
20.00 mi14:32:063:16:569:5115:16
11:14
+0:07
21M
21.00 mi14:44:593:29:499:5912:53
12:53
+1:39
35K
21.75 mi14:53:133:38:0310:028:14
11:00
-1:53
23M
23.00 mi15:07:263:52:1610:0614:13
11:21
+0:21
24M
24.00 mi15:18:384:03:2810:0911:12
11:12
-0:09
40K
24.85 mi15:27:204:12:1010:098:42
10:11
-1:01
25.2M
25.20 mi15:31:094:15:5910:093:49
11:04
+0:53
Finish
26.22 mi15:41:154:26:0510:0910:06
9:55
-1:09

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

8:58 /mi

Average Pace

10:09 /mi

Slowest Pace

12:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:52

50% of race

Time at Steady Pace

34:03

13% of race

Time at Slower Pace

1:40:10

38% of race

Average Pace: 10:09 /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 mi11:43:0327:538:5827:53
8:58
#20349
10K
6.21 mi12:11:0555:559:0028:02
9:01
#20652
15K
9.32 mi12:40:031:24:539:0628:58
9:19
#21058
20K
12.43 mi13:10:301:55:209:1730:27
9:48
#21448
Half
13.11 mi13:16:562:01:469:176:26
9:26
#21461
25K
15.53 mi13:42:172:27:079:2825:21
10:27
#21805
30K
18.64 mi14:16:503:01:409:4534:33
11:07
#22207
20M
20.00 mi14:32:063:16:569:5115:16
11:14
#22277
21M
21.00 mi14:44:593:29:499:5912:53
12:53
#22401
35K
21.75 mi14:53:133:38:0310:028:14
11:00
#22436
23M
23.00 mi15:07:263:52:1610:0614:13
11:21
#22483
24M
24.00 mi15:18:384:03:2810:0911:12
11:12
#22527
40K
24.85 mi15:27:204:12:1010:098:42
10:11
#22453
25.2M
25.20 mi15:31:094:15:5910:093:49
11:04
#22419
Finish
26.22 mi15:41:154:26:0510:0910:06
9:55
#22392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi203498028802821720(Top 82%)8627(Top 76%)8627(Top 1637%)
10K6.21 mi3.10 mi20652-3038121-938121-9320982(Top 79%)8254(Top 72%)8254(Top 1566%)
15K9.32 mi3.11 mi21058-4068320-1998320-19921720(Top 82%)8627(Top 76%)8627(Top 1637%)
20K12.43 mi3.11 mi21448-3908526-2068526-20622412(Top 84%)9029(Top 79%)9029(Top 1713%)
Half13.11 mi0.68 mi21461-138524+28524+221943(Top 82%)8758(Top 77%)8758(Top 1662%)
25K15.53 mi2.42 mi21805-3448712-1888712-18823110(Top 87%)9449(Top 83%)9449(Top 1793%)
30K18.64 mi3.11 mi22207-4028951-2398951-23923279(Top 87%)9612(Top 84%)9612(Top 1824%)
20M20.00 mi1.36 mi22277-708999-488999-4823075(Top 87%)9554(Top 84%)9554(Top 1813%)
21M21.00 mi1.00 mi22401-1249089-909089-9023954(Top 90%)10059(Top 88%)10059(Top 1909%)
35K21.75 mi0.75 mi22436-359109-209109-2023323(Top 88%)9774(Top 86%)9774(Top 1855%)
23M23.00 mi1.25 mi22483-479144-359144-3522994(Top 86%)9582(Top 84%)9582(Top 1818%)
24M24.00 mi1.00 mi22527-449181-379181-3723409(Top 88%)9849(Top 86%)9849(Top 1869%)
40K24.85 mi0.85 mi22453+749144+379144+3720449(Top 77%)8312(Top 73%)8312(Top 1577%)
25.2M25.20 mi0.35 mi22419+349131+139131+1320647(Top 78%)8408(Top 74%)8408(Top 1595%)
Finish26.22 mi1.02 mi22392+279122+99122+921528(Top 81%)8863(Top 78%)8863(Top 1682%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21720

Females

8627

F60-64

8627

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20982

Females

8254

F60-64

8254

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21720

Females

8627

F60-64

8627

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22412

Females

9029

F60-64

9029

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21943

Females

8758

F60-64

8758

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23110

Females

9449

F60-64

9449

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

23279

Females

9612

F60-64

9612

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

23075

Females

9554

F60-64

9554

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23954

Females

10059

F60-64

10059

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

23323

Females

9774

F60-64

9774

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22994

Females

9582

F60-64

9582

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23409

Females

9849

F60-64

9849

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20449

Females

8312

F60-64

8312

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20647

Females

8408

F60-64

8408

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21528

Females

8863

F60-64

8863

Passing Analysis

Category:
Athletes Passed
656
Passed By
2699
Net Change
-2043
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20349
5K → 10K162465-303#20349#20652
10K → 15K52458-406#20652#21058
15K → 20K44434-390#21058#21448
20K → Half2336-13#21448#21461
Half → 25K23367-344#21461#21805
25K → 30K45447-402#21805#22207
30K → 20M44114-70#22207#22277
20M → 21M23147-124#22277#22401
21M → 35K2358-35#22401#22436
35K → 23M4188-47#22436#22483
23M → 24M2165-44#22483#22527
24M → 40K751+74#22527#22453
40K → 25.2M373+34#22453#22419
25.2M → Finish4316+27#22419#22392
TOTALS6562699-2043
📊

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