Boston Marathon logo
BOSTON MARATHON 2023

Pam Mulroy

Bib: 17621•F

BC

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Masters (Masters Women)
#0 / 6539
Top 29%
Division (F40-44)
#0 / 1878
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:23/mi
26:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
51:37
↑ 79↓ 1380.4%
15K· 9.32 mi
8:21/mi
1:17:32
↑ 67↓ 78
20K· 12.43 mi
8:25/mi
1:43:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:49:19
↑ 19↓ 370.5%
25K· 15.53 mi
8:22/mi
2:09:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:27/mi
2:35:50
↑ 181↓ 1480.2%
20M
8:27/mi
2:47:19
↑ 64↓ 500.2%
21M
8:55/mi
2:56:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
3:02:16
↑ 17↓ 861.7%
23M
8:21/mi
3:12:43
↑ 23↓ 630.6%
24M
8:00/mi
3:20:43
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:27:40
↓ 200.3%
25.2M
8:54/mi
3:30:44
↑ 13↓ 160.2%
Finish· 26.22 mi
8:08/mi
3:39:01
↑ 22↓ 21

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 Half⚖️ Balanced
Distance13.11 mi
Time1:49:19
Pace8:20 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:42
Pace8:22 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5726:028:2326:02
8:23
-
10K
6.21 mi11:42:3251:378:1825:35
8:14
-0:09
15K
9.32 mi12:08:271:17:328:1925:55
8:21
+0:07
20K
12.43 mi12:34:351:43:408:2126:08
8:25
+0:04
Half
13.11 mi12:40:141:49:198:205:39
8:17
-0:08
25K
15.53 mi13:00:312:09:368:2120:17
8:22
+0:05
30K
18.64 mi13:26:452:35:508:2226:14
8:27
+0:05
20M
20.00 mi13:38:142:47:198:2211:29
8:27
0:00
21M
21.00 mi13:47:092:56:148:248:55
8:55
+0:28
35K
21.75 mi13:53:113:02:168:236:02
8:04
-0:51
23M
23.00 mi14:03:383:12:438:2310:27
8:21
+0:17
24M
24.00 mi14:11:383:20:438:228:00
8:00
-0:21
40K
24.85 mi14:18:353:27:408:216:57
8:08
+0:08
25.2M
25.20 mi14:21:393:30:448:223:04
8:54
+0:46
Finish
26.22 mi14:29:563:39:018:228:17
8:08
-0:46

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

8:00 /mi

Average Pace

8:22 /mi

Slowest Pace

8:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:02

95% of race

Time at Steady Pace

11:59

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:21 /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 mi11:16:5726:028:2326:02
8:23
#16726
10K
6.21 mi11:42:3251:378:1825:35
8:14
#16552
15K
9.32 mi12:08:271:17:328:1925:55
8:21
#16644
20K
12.43 mi12:34:351:43:408:2126:08
8:25
#16562
Half
13.11 mi12:40:141:49:198:205:39
8:17
#16561
25K
15.53 mi13:00:312:09:368:2120:17
8:22
#16347
30K
18.64 mi13:26:452:35:508:2226:14
8:27
#15869
20M
20.00 mi13:38:142:47:198:2211:29
8:27
#15650
21M
21.00 mi13:47:092:56:148:248:55
8:55
#15471
35K
21.75 mi13:53:113:02:168:236:02
8:04
#15354
23M
23.00 mi14:03:383:12:438:2310:27
8:21
#15152
24M
24.00 mi14:11:383:20:438:228:00
8:00
#14983
40K
24.85 mi14:18:353:27:408:216:57
8:08
#14815
25.2M
25.20 mi14:21:393:30:448:223:04
8:54
#14761
Finish
26.22 mi14:29:563:39:018:228:17
8:08
#14690
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi167265741574116799(Top 63%)5791(Top 51%)5791(Top 308%)
10K6.21 mi3.10 mi16552+1745610+1315610+13116493(Top 62%)5568(Top 49%)5568(Top 296%)
15K9.32 mi3.11 mi16644-925690-805690-8016799(Top 63%)5791(Top 51%)5791(Top 308%)
20K12.43 mi3.11 mi16562+825652+385652+3816316(Top 61%)5537(Top 48%)5537(Top 295%)
Half13.11 mi0.68 mi16561+15652565216371(Top 61%)5503(Top 48%)5503(Top 293%)
25K15.53 mi2.42 mi16347+2145538+1145538+11415367(Top 58%)5056(Top 44%)5056(Top 269%)
30K18.64 mi3.11 mi15869+4785294+2445294+24413964(Top 52%)4317(Top 38%)4317(Top 230%)
20M20.00 mi1.36 mi15650+2195182+1125182+11213365(Top 50%)4056(Top 36%)4056(Top 216%)
21M21.00 mi1.00 mi15471+1795100+825100+8212967(Top 49%)3931(Top 34%)3931(Top 209%)
35K21.75 mi0.75 mi15354+1175039+615039+6112639(Top 47%)3800(Top 33%)3800(Top 202%)
23M23.00 mi1.25 mi15152+2024930+1094930+10912261(Top 46%)3672(Top 32%)3672(Top 196%)
24M24.00 mi1.00 mi14983+1694847+834847+8311281(Top 42%)3243(Top 28%)3243(Top 173%)
40K24.85 mi0.85 mi14815+1684770+774770+7710949(Top 41%)3135(Top 27%)3135(Top 167%)
25.2M25.20 mi0.35 mi14761+544748+224748+2212013(Top 45%)3751(Top 33%)3751(Top 200%)
Finish26.22 mi1.02 mi14690+714717+314717+3113006(Top 49%)4222(Top 37%)4222(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16799

Females

5791

F40-44

5791

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16493

Females

5568

F40-44

5568

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16799

Females

5791

F40-44

5791

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

16316

Females

5537

F40-44

5537

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16371

Females

5503

F40-44

5503

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15367

Females

5056

F40-44

5056

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13964

Females

4317

F40-44

4317

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

13365

Females

4056

F40-44

4056

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

12967

Females

3931

F40-44

3931

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12639

Females

3800

F40-44

3800

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12261

Females

3672

F40-44

3672

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11281

Females

3243

F40-44

3243

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10949

Females

3135

F40-44

3135

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12013

Females

3751

F40-44

3751

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13006

Females

4222

F40-44

4222

Passing Analysis

Category:
Athletes Passed
2799
Passed By
763
Net Change
+2036
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16726
5K → 10K395221+174#16726#16552
10K → 15K167259-92#16552#16644
15K → 20K205123+82#16644#16562
20K → Half3736+1#16562#16561
Half → 25K25743+214#16561#16347
25K → 30K49012+478#16347#15869
30K → 20M2267+219#15869#15650
20M → 21M19213+179#15650#15471
21M → 35K1225+117#15471#15354
35K → 23M21210+202#15354#15152
23M → 24M1756+169#15152#14983
24M → 40K1713+168#14983#14815
40K → 25.2M595+54#14815#14761
25.2M → Finish9120+71#14761#14690
TOTALS2799763+2036
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing