Boston Marathon logo
BOSTON MARATHON 2023

Mary Allen

Bib: 27620•F

DC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
9:00/mi
27:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:42/mi
54:59
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:22:52
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:50:30
↑ 106↓ 860.1%
Half· 13.11 mi
9:01/mi
1:56:39
↑ 19↓ 370.5%
25K· 15.53 mi
9:09/mi
2:18:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:46:48
↑ 181↓ 1480.2%
20M
9:12/mi
2:59:18
↑ 64↓ 500.2%
21M
9:30/mi
3:08:48
↑ 106↓ 241.6%
35K· 21.75 mi
9:13/mi
3:15:42
↑ 17↓ 861.7%
23M
9:09/mi
3:27:10
↑ 23↓ 630.6%
24M
9:04/mi
3:36:14
↓ 821.3%
40K· 24.85 mi
9:21/mi
3:44:14
↓ 200.3%
25.2M
10:12/mi
3:47:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:56:25
↑ 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
Time1:56:39
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time1:59:46
Pace9:08 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1427:589:0027:58
9:00
-
10K
6.21 mi12:12:1554:598:5127:01
8:42
-0:18
15K
9.32 mi12:40:081:22:528:5327:53
8:58
+0:16
20K
12.43 mi13:07:461:50:308:5327:38
8:54
-0:04
Half
13.11 mi13:13:551:56:398:546:09
9:01
+0:07
25K
15.53 mi13:36:072:18:518:5622:12
9:09
+0:08
30K
18.64 mi14:04:042:46:488:5727:57
9:00
-0:09
20M
20.00 mi14:16:342:59:188:5812:30
9:12
+0:12
21M
21.00 mi14:26:043:08:488:599:30
9:30
+0:18
35K
21.75 mi14:32:583:15:429:006:54
9:13
-0:17
23M
23.00 mi14:44:263:27:109:0011:28
9:09
-0:04
24M
24.00 mi14:53:303:36:149:019:04
9:04
-0:05
40K
24.85 mi15:01:303:44:149:018:00
9:21
+0:17
25.2M
25.20 mi15:05:013:47:459:023:31
10:12
+0:51
Finish
26.22 mi15:13:413:56:259:018:40
8:30
-1:42

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

8:30 /mi

Average Pace

9:01 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:24

91% of race

Time at Steady Pace

17:30

7% of race

Time at Slower Pace

3:31

1% of race

Average Pace: 9:01 /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 mi11:45:1427:589:0027:58
9:00
#20467
10K
6.21 mi12:12:1554:598:5127:01
8:42
#19933
15K
9.32 mi12:40:081:22:528:5327:53
8:58
#20081
20K
12.43 mi13:07:461:50:308:5327:38
8:54
#19826
Half
13.11 mi13:13:551:56:398:546:09
9:01
#19845
25K
15.53 mi13:36:072:18:518:5622:12
9:09
#19829
30K
18.64 mi14:04:042:46:488:5727:57
9:00
#19351
20M
20.00 mi14:16:342:59:188:5812:30
9:12
#19195
21M
21.00 mi14:26:043:08:488:599:30
9:30
#19012
35K
21.75 mi14:32:583:15:429:006:54
9:13
#19001
23M
23.00 mi14:44:263:27:109:0011:28
9:09
#18878
24M
24.00 mi14:53:303:36:149:019:04
9:04
#18799
40K
24.85 mi15:01:303:44:149:018:00
9:21
#18768
25.2M
25.20 mi15:05:013:47:459:023:31
10:12
#18757
Finish
26.22 mi15:13:413:56:259:018:40
8:30
#18647
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi204678098809820398(Top 77%)7900(Top 69%)7900(Top 162%)
10K6.21 mi3.10 mi19933+5347728+3707728+37019430(Top 73%)7340(Top 64%)7340(Top 150%)
15K9.32 mi3.11 mi20081-1487785-577785-5720398(Top 77%)7900(Top 69%)7900(Top 162%)
20K12.43 mi3.11 mi19826+2557619+1667619+16619193(Top 72%)7208(Top 63%)7208(Top 148%)
Half13.11 mi0.68 mi19845-197629-107629-1020549(Top 77%)8004(Top 70%)8004(Top 164%)
25K15.53 mi2.42 mi19829+167624+57624+519667(Top 74%)7515(Top 66%)7515(Top 154%)
30K18.64 mi3.11 mi19351+4787349+2757349+27517167(Top 64%)6174(Top 54%)6174(Top 126%)
20M20.00 mi1.36 mi19195+1567265+847265+8417575(Top 66%)6502(Top 57%)6502(Top 133%)
21M21.00 mi1.00 mi19012+1837176+897176+8915993(Top 60%)5636(Top 49%)5636(Top 115%)
35K21.75 mi0.75 mi19001+117178-27178-218888(Top 71%)7341(Top 64%)7341(Top 150%)
23M23.00 mi1.25 mi18878+1237119+597119+5916882(Top 63%)6232(Top 55%)6232(Top 128%)
24M24.00 mi1.00 mi18799+797085+347085+3417571(Top 66%)6672(Top 58%)6672(Top 137%)
40K24.85 mi0.85 mi18768+317081+47081+417816(Top 67%)6857(Top 60%)6857(Top 140%)
25.2M25.20 mi0.35 mi18757+117082-17082-118204(Top 68%)7081(Top 62%)7081(Top 145%)
Finish26.22 mi1.02 mi18647+1107018+647018+6415510(Top 58%)5554(Top 49%)5554(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20398

Females

7900

F18-39

7900

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19430

Females

7340

F18-39

7340

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20398

Females

7900

F18-39

7900

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19193

Females

7208

F18-39

7208

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

20549

Females

8004

F18-39

8004

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19667

Females

7515

F18-39

7515

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17167

Females

6174

F18-39

6174

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17575

Females

6502

F18-39

6502

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

15993

Females

5636

F18-39

5636

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

18888

Females

7341

F18-39

7341

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16882

Females

6232

F18-39

6232

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17571

Females

6672

F18-39

6672

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17816

Females

6857

F18-39

6857

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18204

Females

7081

F18-39

7081

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15510

Females

5554

F18-39

5554

Passing Analysis

Category:
Athletes Passed
2631
Passed By
811
Net Change
+1820
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20467
5K → 10K674140+534#20467#19933
10K → 15K130278-148#19933#20081
15K → 20K31459+255#20081#19826
20K → Half2140-19#19826#19845
Half → 25K125109+16#19845#19829
25K → 30K49214+478#19829#19351
30K → 20M16711+156#19351#19195
20M → 21M19714+183#19195#19012
21M → 35K4635+11#19012#19001
35K → 23M14219+123#19001#18878
23M → 24M10021+79#18878#18799
24M → 40K6534+31#18799#18768
40K → 25.2M3221+11#18768#18757
25.2M → Finish12616+110#18757#18647
TOTALS2631811+1820
📊

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