Boston Marathon logo
BOSTON MARATHON 2023

Sara Keough

Bib: 16503•F

MI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 33%
Masters (Masters Women)
#0 / 6539
Top 19%
Division (F45-49)
#0 / 1817
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:59
Rank: #14309
Start → 5K
24:59 | 8:02/mi
10K· 6.21 mi
49:32
Rank: #14181 (+128)
5K → 10K
24:33 | 7:54/mi
15K· 9.32 mi
1:14:59
Rank: #14699 (-518)
10K → 15K
25:27 | 8:11/mi
20K· 12.43 mi
1:40:11
Rank: #14566 (+133)
15K → 20K
25:12 | 8:07/mi
Half· 13.11 mi
1:45:36
Rank: #14549 (+17)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:05:13
Rank: #14345 (+204)
Half → 25K
19:37 | 8:05/mi
30K· 18.64 mi
2:30:25
Rank: #13847 (+498)
25K → 30K
25:12 | 8:07/mi
20M
2:41:33
Rank: #13652 (+195)
30K → 20M
11:08 | 8:12/mi
21M
2:50:09
Rank: #13469 (+183)
20M → 21M
8:36 | 8:36/mi
35K· 21.75 mi
2:56:05
Rank: #13381 (+88)
21M → 35K
5:56 | 7:56/mi
23M
3:06:25
Rank: #13238 (+143)
35K → 23M
10:20 | 8:15/mi
24M
3:14:31
Rank: #13158 (+80)
23M → 24M
8:06 | 8:06/mi
40K· 24.85 mi
3:21:38
Rank: #13092 (+66)
24M → 40K
7:07 | 8:19/mi
25.2M
3:24:44
Rank: #13078 (+14)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:33:04
Rank: #13072 (+6)
25.2M → Finish
8:20 | 8:11/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
Time1:45:36
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:47:28
Pace8:12 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1824:598:0224:59
8:02
-
10K
6.21 mi11:39:5149:327:5824:33
7:54
-0:08
15K
9.32 mi12:05:181:14:598:0325:27
8:11
+0:17
20K
12.43 mi12:30:301:40:118:0425:12
8:07
-0:04
Half
13.11 mi12:35:551:45:368:035:25
7:56
-0:11
25K
15.53 mi12:55:322:05:138:0419:37
8:05
+0:09
30K
18.64 mi13:20:442:30:258:0425:12
8:07
+0:02
20M
20.00 mi13:31:522:41:338:0511:08
8:12
+0:05
21M
21.00 mi13:40:282:50:098:068:36
8:36
+0:24
35K
21.75 mi13:46:242:56:058:065:56
7:56
-0:40
23M
23.00 mi13:56:443:06:258:0610:20
8:15
+0:19
24M
24.00 mi14:04:503:14:318:068:06
8:06
-0:09
40K
24.85 mi14:11:573:21:388:077:07
8:19
+0:13
25.2M
25.20 mi14:15:033:24:448:073:06
8:59
+0:40
Finish
26.22 mi14:23:233:33:048:088:20
8:11
-0:48

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

7:54 /mi

Average Pace

8:08 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:58

99% of race

Time at Steady Pace

3:06

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:08 /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 mi11:15:1824:598:0224:59
8:02
#14309
10K
6.21 mi11:39:5149:327:5824:33
7:54
#14181
15K
9.32 mi12:05:181:14:598:0325:27
8:11
#14699
20K
12.43 mi12:30:301:40:118:0425:12
8:07
#14566
Half
13.11 mi12:35:551:45:368:035:25
7:56
#14549
25K
15.53 mi12:55:322:05:138:0419:37
8:05
#14345
30K
18.64 mi13:20:442:30:258:0425:12
8:07
#13847
20M
20.00 mi13:31:522:41:338:0511:08
8:12
#13652
21M
21.00 mi13:40:282:50:098:068:36
8:36
#13469
35K
21.75 mi13:46:242:56:058:065:56
7:56
#13381
23M
23.00 mi13:56:443:06:258:0610:20
8:15
#13238
24M
24.00 mi14:04:503:14:318:068:06
8:06
#13158
40K
24.85 mi14:11:573:21:388:077:07
8:19
#13092
25.2M
25.20 mi14:15:033:24:448:073:06
8:59
#13078
Finish
26.22 mi14:23:233:33:048:088:20
8:11
#13072
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi143094210421015805(Top 59%)5165(Top 45%)5165(Top 284%)
10K6.21 mi3.10 mi14181+1284151+594151+5914015(Top 53%)4054(Top 35%)4054(Top 223%)
15K9.32 mi3.11 mi14699-5184473-3224473-32215805(Top 59%)5165(Top 45%)5165(Top 284%)
20K12.43 mi3.11 mi14566+1334410+634410+6314291(Top 54%)4281(Top 37%)4281(Top 236%)
Half13.11 mi0.68 mi14549+174394+164394+1613917(Top 52%)4026(Top 35%)4026(Top 222%)
25K15.53 mi2.42 mi14345+2044311+834311+8313451(Top 51%)3890(Top 34%)3890(Top 214%)
30K18.64 mi3.11 mi13847+4984042+2694042+26911742(Top 44%)3043(Top 27%)3043(Top 167%)
20M20.00 mi1.36 mi13652+1953946+963946+9611681(Top 44%)3111(Top 27%)3111(Top 171%)
21M21.00 mi1.00 mi13469+1833856+903856+9011088(Top 42%)2923(Top 26%)2923(Top 161%)
35K21.75 mi0.75 mi13381+883819+373819+3711671(Top 44%)3250(Top 28%)3250(Top 179%)
23M23.00 mi1.25 mi13238+1433757+623757+6211576(Top 43%)3293(Top 29%)3293(Top 181%)
24M24.00 mi1.00 mi13158+803744+133744+1311974(Top 45%)3575(Top 31%)3575(Top 197%)
40K24.85 mi0.85 mi13092+663728+163728+1612239(Top 46%)3796(Top 33%)3796(Top 209%)
25.2M25.20 mi0.35 mi13078+143728372812524(Top 47%)3983(Top 35%)3983(Top 219%)
Finish26.22 mi1.02 mi13072+63743-153743-1513304(Top 50%)4363(Top 38%)4363(Top 240%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

15805

Females

5165

F45-49

5165

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14015

Females

4054

F45-49

4054

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

15805

Females

5165

F45-49

5165

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14291

Females

4281

F45-49

4281

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

13917

Females

4026

F45-49

4026

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

13451

Females

3890

F45-49

3890

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11742

Females

3043

F45-49

3043

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11681

Females

3111

F45-49

3111

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11088

Females

2923

F45-49

2923

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11671

Females

3250

F45-49

3250

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11576

Females

3293

F45-49

3293

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11974

Females

3575

F45-49

3575

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12239

Females

3796

F45-49

3796

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12524

Females

3983

F45-49

3983

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13304

Females

4363

F45-49

4363

Passing Analysis

Category:
Athletes Passed
2464
Passed By
1227
Net Change
+1237
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14309
5K → 10K353225+128#14309#14181
10K → 15K66584-518#14181#14699
15K → 20K258125+133#14699#14566
20K → Half4225+17#14566#14549
Half → 25K24642+204#14549#14345
25K → 30K51517+498#14345#13847
30K → 20M21116+195#13847#13652
20M → 21M19714+183#13652#13469
21M → 35K10214+88#13469#13381
35K → 23M17229+143#13381#13238
23M → 24M11636+80#13238#13158
24M → 40K8822+66#13158#13092
40K → 25.2M3824+14#13092#13078
25.2M → Finish6054+6#13078#13072
TOTALS24641227+1237
📊

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