Boston Marathon logo
BOSTON MARATHON 2023

Megan Gibney

Bib: 19041•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F45-49)
#0 / 1817
Top 34%
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
8:20/mi
25:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
50:44
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:16:03
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:41:57
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:47:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:07:52
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:34:40
↑ 181↓ 1480.2%
20M
8:45/mi
2:46:33
↑ 64↓ 500.2%
21M
9:21/mi
2:55:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
3:02:07
↑ 17↓ 861.7%
23M
8:42/mi
3:13:01
↑ 23↓ 630.6%
24M
8:24/mi
3:21:25
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:28:33
↓ 200.3%
25.2M
8:51/mi
3:31:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:50/mi
3:39:35
↑ 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 HalfFaster
Distance13.11 mi
Time1:47:32
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:52:03
Pace8:33 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5025:538:2025:53
8:20
-
10K
6.21 mi11:42:4150:448:1024:51
8:00
-0:20
15K
9.32 mi12:08:001:16:038:1025:19
8:09
+0:09
20K
12.43 mi12:33:541:41:578:1225:54
8:20
+0:11
Half
13.11 mi12:39:291:47:328:125:35
8:11
-0:09
25K
15.53 mi12:59:492:07:528:1420:20
8:23
+0:12
30K
18.64 mi13:26:372:34:408:1826:48
8:38
+0:15
20M
20.00 mi13:38:302:46:338:2011:53
8:45
+0:07
21M
21.00 mi13:47:512:55:548:239:21
9:21
+0:36
35K
21.75 mi13:54:043:02:078:226:13
8:19
-1:02
23M
23.00 mi14:04:583:13:018:2410:54
8:42
+0:23
24M
24.00 mi14:13:223:21:258:248:24
8:24
-0:18
40K
24.85 mi14:20:303:28:338:237:08
8:21
-0:03
25.2M
25.20 mi14:23:333:31:368:243:03
8:51
+0:30
Finish
26.22 mi14:31:323:39:358:237:59
7:50
-1:01

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

7:50 /mi

Average Pace

8:23 /mi

Slowest Pace

9:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:36

72% of race

Time at Steady Pace

52:38

24% of race

Time at Slower Pace

9:21

4% of race

Average Pace: 8:22 /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 mi11:17:5025:538:2025:53
8:20
#16365
10K
6.21 mi11:42:4150:448:1024:51
8:00
#15587
15K
9.32 mi12:08:001:16:038:1025:19
8:09
#15546
20K
12.43 mi12:33:541:41:578:1225:54
8:20
#15601
Half
13.11 mi12:39:291:47:328:125:35
8:11
#15617
25K
15.53 mi12:59:492:07:528:1420:20
8:23
#15554
30K
18.64 mi13:26:372:34:408:1826:48
8:38
#15449
20M
20.00 mi13:38:302:46:338:2011:53
8:45
#15430
21M
21.00 mi13:47:512:55:548:239:21
9:21
#15365
35K
21.75 mi13:54:043:02:078:226:13
8:19
#15302
23M
23.00 mi14:04:583:13:018:2410:54
8:42
#15236
24M
24.00 mi14:13:223:21:258:248:24
8:24
#15148
40K
24.85 mi14:20:303:28:338:237:08
8:21
#15048
25.2M
25.20 mi14:23:333:31:368:243:03
8:51
#14986
Finish
26.22 mi14:31:323:39:358:237:59
7:50
#14834
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi163655508550815503(Top 58%)4984(Top 44%)4984(Top 274%)
10K6.21 mi3.10 mi15587+7785022+4865022+48614806(Top 56%)4550(Top 40%)4550(Top 250%)
15K9.32 mi3.11 mi15546+415006+165006+1615503(Top 58%)4984(Top 44%)4984(Top 274%)
20K12.43 mi3.11 mi15601-555059-535059-5315852(Top 60%)5254(Top 46%)5254(Top 289%)
Half13.11 mi0.68 mi15617-165068-95068-915713(Top 59%)5119(Top 45%)5119(Top 282%)
25K15.53 mi2.42 mi15554+635061+75061+715503(Top 58%)5141(Top 45%)5141(Top 283%)
30K18.64 mi3.11 mi15449+1055040+215040+2115074(Top 57%)4977(Top 44%)4977(Top 274%)
20M20.00 mi1.36 mi15430+195049-95049-915140(Top 57%)5079(Top 44%)5079(Top 280%)
21M21.00 mi1.00 mi15365+655035+145035+1415270(Top 57%)5207(Top 46%)5207(Top 287%)
35K21.75 mi0.75 mi15302+635007+285007+2814192(Top 53%)4672(Top 41%)4672(Top 257%)
23M23.00 mi1.25 mi15236+664987+204987+2014433(Top 54%)4870(Top 43%)4870(Top 268%)
24M24.00 mi1.00 mi15148+884945+424945+4213903(Top 52%)4618(Top 40%)4618(Top 254%)
40K24.85 mi0.85 mi15048+1004906+394906+3912381(Top 47%)3881(Top 34%)3881(Top 214%)
25.2M25.20 mi0.35 mi14986+624882+244882+2411711(Top 44%)3607(Top 32%)3607(Top 199%)
Finish26.22 mi1.02 mi14834+1524811+714811+7110985(Top 41%)3193(Top 28%)3193(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15503

Females

4984

F45-49

4984

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14806

Females

4550

F45-49

4550

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15503

Females

4984

F45-49

4984

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

15852

Females

5254

F45-49

5254

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15713

Females

5119

F45-49

5119

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15503

Females

5141

F45-49

5141

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15074

Females

4977

F45-49

4977

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15140

Females

5079

F45-49

5079

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15270

Females

5207

F45-49

5207

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14192

Females

4672

F45-49

4672

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14433

Females

4870

F45-49

4870

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

13903

Females

4618

F45-49

4618

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12381

Females

3881

F45-49

3881

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11711

Females

3607

F45-49

3607

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

10985

Females

3193

F45-49

3193

Passing Analysis

Category:
Athletes Passed
2496
Passed By
965
Net Change
+1531
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16365
5K → 10K85476+778#16365#15587
10K → 15K200159+41#15587#15546
15K → 20K153208-55#15546#15601
20K → Half2844-16#15601#15617
Half → 25K163100+63#15617#15554
25K → 30K231126+105#15554#15449
30K → 20M9374+19#15449#15430
20M → 21M11853+65#15430#15365
21M → 35K7916+63#15365#15302
35K → 23M12155+66#15302#15236
23M → 24M11224+88#15236#15148
24M → 40K11515+100#15148#15048
40K → 25.2M686+62#15048#14986
25.2M → Finish1619+152#14986#14834
TOTALS2496965+1531
📊

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