Boston Marathon logo
BOSTON MARATHON 2023

Susan Harrington

Bib: 30465•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:27
Rank: #24576
Start → 5K
32:27 | 10:27/mi
10K· 6.21 mi
1:05:10
Rank: #24701 (-125)
5K → 10K
32:43 | 10:32/mi
15K· 9.32 mi
1:37:42
Rank: #24606 (+95)
10K → 15K
32:32 | 10:28/mi
20K· 12.43 mi
2:11:15
Rank: #24526 (+80)
15K → 20K
33:33 | 10:48/mi
Half· 13.11 mi
2:18:38
Rank: #24533 (-7)
20K → Half
7:23 | 10:49/mi
25K· 15.53 mi
2:46:04
Rank: #24545 (-12)
Half → 25K
27:26 | 11:19/mi
30K· 18.64 mi
3:24:08
Rank: #24591 (-46)
25K → 30K
38:04 | 12:15/mi
20M
3:40:48
Rank: #24591
30K → 20M
16:40 | 12:16/mi
21M
3:54:09
Rank: #24619 (-28)
20M → 21M
13:21 | 13:21/mi
35K· 21.75 mi
4:02:42
Rank: #24592 (+27)
21M → 35K
8:33 | 11:26/mi
23M
4:17:22
Rank: #24533 (+59)
35K → 23M
14:40 | 11:43/mi
24M
4:29:19
Rank: #24530 (+3)
23M → 24M
11:57 | 11:57/mi
40K· 24.85 mi
4:39:24
Rank: #24510 (+20)
24M → 40K
10:05 | 11:48/mi
25.2M
4:43:36
Rank: #24497 (+13)
40K → 25.2M
4:12 | 12:11/mi
Finish· 26.22 mi
4:54:28
Rank: #24467 (+30)
25.2M → Finish
10:52 | 10:40/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
Time2:18:38
Pace10:34 /mi
2nd Half
Distance13.11 mi
Time2:35:50
Pace11:53 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4332:2710:2732:27
10:27
-
10K
6.21 mi12:26:261:05:1010:2932:43
10:32
+0:05
15K
9.32 mi12:58:581:37:4210:2932:32
10:28
-0:04
20K
12.43 mi13:32:312:11:1510:3433:33
10:48
+0:20
Half
13.11 mi13:39:542:18:3810:347:23
10:49
+0:01
25K
15.53 mi14:07:202:46:0410:4127:26
11:19
+0:30
30K
18.64 mi14:45:243:24:0810:5738:04
12:15
+0:56
20M
20.00 mi15:02:043:40:4811:0216:40
12:16
+0:01
21M
21.00 mi15:15:253:54:0911:0913:21
13:21
+1:05
35K
21.75 mi15:23:584:02:4211:108:33
11:26
-1:55
23M
23.00 mi15:38:384:17:2211:1114:40
11:43
+0:17
24M
24.00 mi15:50:354:29:1911:1311:57
11:57
+0:14
40K
24.85 mi16:00:404:39:2411:1410:05
11:48
-0:09
25.2M
25.20 mi16:04:524:43:3611:154:12
12:11
+0:23
Finish
26.22 mi16:15:444:54:2811:1410:52
10:40
-1:31

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

10:27 /mi

Average Pace

11:14 /mi

Slowest Pace

13:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:30

51% of race

Time at Steady Pace

1:00:44

21% of race

Time at Slower Pace

1:24:14

29% of race

Average Pace: 11:14 /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 mi11:53:4332:2710:2732:27
10:27
#24576
10K
6.21 mi12:26:261:05:1010:2932:43
10:32
#24701
15K
9.32 mi12:58:581:37:4210:2932:32
10:28
#24606
20K
12.43 mi13:32:312:11:1510:3433:33
10:48
#24526
Half
13.11 mi13:39:542:18:3810:347:23
10:49
#24533
25K
15.53 mi14:07:202:46:0410:4127:26
11:19
#24545
30K
18.64 mi14:45:243:24:0810:5738:04
12:15
#24591
20M
20.00 mi15:02:043:40:4811:0216:40
12:16
#24591
21M
21.00 mi15:15:253:54:0911:0913:21
13:21
#24619
35K
21.75 mi15:23:584:02:4211:108:33
11:26
#24592
23M
23.00 mi15:38:384:17:2211:1114:40
11:43
#24533
24M
24.00 mi15:50:354:29:1911:1311:57
11:57
#24530
40K
24.85 mi16:00:404:39:2411:1410:05
11:48
#24510
25.2M
25.20 mi16:04:524:43:3611:154:12
12:11
#24497
Finish
26.22 mi16:15:444:54:2811:1410:52
10:40
#24467
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi24576102041020424407(Top 92%)10123(Top 89%)10123(Top 539%)
10K6.21 mi3.10 mi24701-12510265-6110265-6124729(Top 93%)10295(Top 90%)10295(Top 548%)
15K9.32 mi3.11 mi24606+9510227+3810227+3824407(Top 92%)10123(Top 89%)10123(Top 539%)
20K12.43 mi3.11 mi24526+8010190+3710190+3724319(Top 91%)10100(Top 88%)10100(Top 538%)
Half13.11 mi0.68 mi24533-710198-810198-824710(Top 93%)10325(Top 90%)10325(Top 550%)
25K15.53 mi2.42 mi24545-1210214-1610214-1624432(Top 92%)10193(Top 89%)10193(Top 543%)
30K18.64 mi3.11 mi24591-4610255-4110255-4124766(Top 93%)10433(Top 91%)10433(Top 556%)
20M20.00 mi1.36 mi2459110266-1110266-1124507(Top 92%)10338(Top 91%)10338(Top 550%)
21M21.00 mi1.00 mi24619-2810281-1510281-1524449(Top 92%)10316(Top 90%)10316(Top 549%)
35K21.75 mi0.75 mi24592+2710276+510276+524010(Top 90%)10136(Top 89%)10136(Top 540%)
23M23.00 mi1.25 mi24533+5910250+2610250+2623601(Top 89%)9906(Top 87%)9906(Top 527%)
24M24.00 mi1.00 mi24530+310261-1110261-1124459(Top 92%)10410(Top 91%)10410(Top 554%)
40K24.85 mi0.85 mi24510+2010255+610255+623640(Top 89%)10018(Top 88%)10018(Top 533%)
25.2M25.20 mi0.35 mi24497+1310252+310252+322838(Top 86%)9576(Top 84%)9576(Top 510%)
Finish26.22 mi1.02 mi24467+3010243+910243+923365(Top 88%)9844(Top 86%)9844(Top 524%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

24407

Females

10123

F40-44

10123

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

24729

Females

10295

F40-44

10295

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

24407

Females

10123

F40-44

10123

15K→20K

9.3 - 12.4 mi

Top 91%
×5stories
+106ft-86ft

Overall

24319

Females

10100

F40-44

10100

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24710

Females

10325

F40-44

10325

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24432

Females

10193

F40-44

10193

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

24766

Females

10433

F40-44

10433

30K→20M

18.6 - 20.0 mi

Top 92%
×5stories
+64ft-50ft

Overall

24507

Females

10338

F40-44

10338

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

24449

Females

10316

F40-44

10316

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

24010

Females

10136

F40-44

10136

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23601

Females

9906

F40-44

9906

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

24459

Females

10410

F40-44

10410

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23640

Females

10018

F40-44

10018

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22838

Females

9576

F40-44

9576

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

23365

Females

9844

F40-44

9844

Passing Analysis

Category:
Athletes Passed
923
Passed By
814
Net Change
+109
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24576
5K → 10K137262-125#24576#24701
10K → 15K16671+95#24701#24606
15K → 20K12949+80#24606#24526
20K → Half2532-7#24526#24533
Half → 25K6981-12#24533#24545
25K → 30K84130-46#24545#24591
30K → 20M46460#24591#24591
20M → 21M2755-28#24591#24619
21M → 35K3912+27#24619#24592
35K → 23M7112+59#24592#24533
23M → 24M3532+3#24533#24530
24M → 40K3717+20#24530#24510
40K → 25.2M174+13#24510#24497
25.2M → Finish4111+30#24497#24467
TOTALS923814+109
📊

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