Boston Marathon logo
BOSTON MARATHON 2023

Jennifer Harney

Bib: 15557•F

TX

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

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
9:17/mi
28:51
↑ 97↓ 3451.5%
10K· 6.21 mi
9:07/mi
57:12
↑ 79↓ 1380.4%
15K· 9.32 mi
9:19/mi
1:26:09
↑ 67↓ 78
20K· 12.43 mi
9:16/mi
1:54:57
↑ 106↓ 860.1%
Half· 13.11 mi
9:23/mi
2:01:21
↑ 19↓ 370.5%
25K· 15.53 mi
9:21/mi
2:24:02
↑ 66↓ 880.2%
30K· 18.64 mi
9:07/mi
2:52:20
↑ 181↓ 1480.2%
20M
9:54/mi
3:05:47
↑ 64↓ 500.2%
21M
9:17/mi
3:15:04
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
3:21:15
↑ 17↓ 861.7%
23M
8:10/mi
3:31:29
↑ 23↓ 630.6%
24M
8:08/mi
3:39:37
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:47:10
↓ 200.3%
25.2M
9:08/mi
3:50:19
↑ 13↓ 160.2%
Finish· 26.22 mi
7:45/mi
3:58:13
↑ 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
Distance13.11 mi
Time2:01:21
Pace9:15 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:56:52
Pace8:55 /mi
📊Negative Split: 3.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:00:1328:519:1728:51
9:17
-
10K
6.21 mi11:28:3457:129:1228:21
9:07
-0:10
15K
9.32 mi11:57:311:26:099:1528:57
9:19
+0:12
20K
12.43 mi12:26:191:54:579:1528:48
9:16
-0:03
Half
13.11 mi12:32:432:01:219:156:24
9:23
+0:07
25K
15.53 mi12:55:242:24:029:1622:41
9:21
-0:02
30K
18.64 mi13:23:422:52:209:1528:18
9:07
-0:14
20M
20.00 mi13:37:093:05:479:1713:27
9:54
+0:47
21M
21.00 mi13:46:263:15:049:179:17
9:17
-0:37
35K
21.75 mi13:52:373:21:159:156:11
8:16
-1:01
23M
23.00 mi14:02:513:31:299:1210:14
8:10
-0:06
24M
24.00 mi14:10:593:39:379:098:08
8:08
-0:02
40K
24.85 mi14:18:323:47:109:087:33
8:50
+0:42
25.2M
25.20 mi14:21:413:50:199:083:09
9:08
+0:18
Finish
26.22 mi14:29:353:58:139:067:54
7:45
-1:23

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

7:45 /mi

Average Pace

9:06 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:00

17% of race

Time at Steady Pace

3:04:46

78% of race

Time at Slower Pace

13:27

6% of race

Average Pace: 9:05 /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 mi11:00:1328:519:1728:51
9:17
#21488
10K
6.21 mi11:28:3457:129:1228:21
9:07
#21414
15K
9.32 mi11:57:311:26:099:1528:57
9:19
#21510
20K
12.43 mi12:26:191:54:579:1528:48
9:16
#21353
Half
13.11 mi12:32:432:01:219:156:24
9:23
#21367
25K
15.53 mi12:55:242:24:029:1622:41
9:21
#21193
30K
18.64 mi13:23:422:52:209:1528:18
9:07
#20621
20M
20.00 mi13:37:093:05:479:1713:27
9:54
#20580
21M
21.00 mi13:46:263:15:049:179:17
9:17
#20294
35K
21.75 mi13:52:373:21:159:156:11
8:16
#20116
23M
23.00 mi14:02:513:31:299:1210:14
8:10
#19719
24M
24.00 mi14:10:593:39:379:098:08
8:08
#19455
40K
24.85 mi14:18:323:47:109:087:33
8:50
#19318
25.2M
25.20 mi14:21:413:50:199:083:09
9:08
#19238
Finish
26.22 mi14:29:353:58:139:067:54
7:45
#18992
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi214888628862821702(Top 82%)8616(Top 75%)8616(Top 459%)
10K6.21 mi3.10 mi21414+748539+898539+8921377(Top 80%)8482(Top 74%)8482(Top 452%)
15K9.32 mi3.11 mi21510-968561-228561-2221702(Top 82%)8616(Top 75%)8616(Top 459%)
20K12.43 mi3.11 mi21353+1578465+968465+9620861(Top 78%)8144(Top 71%)8144(Top 434%)
Half13.11 mi0.68 mi21367-148469-48469-421764(Top 82%)8660(Top 76%)8660(Top 461%)
25K15.53 mi2.42 mi21193+1748375+948375+9420374(Top 77%)7914(Top 69%)7914(Top 421%)
30K18.64 mi3.11 mi20621+5728068+3078068+30717755(Top 67%)6501(Top 57%)6501(Top 346%)
20M20.00 mi1.36 mi20580+418064+48064+420175(Top 76%)7963(Top 70%)7963(Top 424%)
21M21.00 mi1.00 mi20294+2867920+1447920+14414938(Top 56%)5027(Top 44%)5027(Top 268%)
35K21.75 mi0.75 mi20116+1787823+977823+9713970(Top 52%)4561(Top 40%)4561(Top 243%)
23M23.00 mi1.25 mi19719+3977597+2267597+22611043(Top 41%)3053(Top 27%)3053(Top 163%)
24M24.00 mi1.00 mi19455+2647456+1417456+14112197(Top 46%)3708(Top 32%)3708(Top 197%)
40K24.85 mi0.85 mi19318+1377380+767380+7615298(Top 57%)5480(Top 48%)5480(Top 292%)
25.2M25.20 mi0.35 mi19238+807336+447336+4413406(Top 50%)4477(Top 39%)4477(Top 238%)
Finish26.22 mi1.02 mi18992+2467206+1307206+13010382(Top 39%)2899(Top 25%)2899(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21702

Females

8616

F40-44

8616

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21377

Females

8482

F40-44

8482

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21702

Females

8616

F40-44

8616

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20861

Females

8144

F40-44

8144

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21764

Females

8660

F40-44

8660

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20374

Females

7914

F40-44

7914

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17755

Females

6501

F40-44

6501

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20175

Females

7963

F40-44

7963

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14938

Females

5027

F40-44

5027

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

13970

Females

4561

F40-44

4561

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11043

Females

3053

F40-44

3053

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12197

Females

3708

F40-44

3708

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15298

Females

5480

F40-44

5480

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13406

Females

4477

F40-44

4477

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

10382

Females

2899

F40-44

2899

Passing Analysis

Category:
Athletes Passed
3155
Passed By
659
Net Change
+2496
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21488
5K → 10K323249+74#21488#21414
10K → 15K120216-96#21414#21510
15K → 20K22871+157#21510#21353
20K → Half2135-14#21353#21367
Half → 25K19925+174#21367#21193
25K → 30K5797+572#21193#20621
30K → 20M8948+41#20621#20580
20M → 21M2871+286#20580#20294
21M → 35K1780+178#20294#20116
35K → 23M3970+397#20116#19719
23M → 24M2651+264#19719#19455
24M → 40K1403+137#19455#19318
40K → 25.2M811+80#19318#19238
25.2M → Finish2482+246#19238#18992
TOTALS3155659+2496
📊

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