Boston Marathon logo
BOSTON MARATHON 2023

Denise Spenard

Bib: 27570•F

NH

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
9:45/mi
30:18
↑ 97↓ 3451.5%
10K· 6.21 mi
9:07/mi
58:39
↑ 79↓ 1380.4%
15K· 9.32 mi
10:06/mi
1:30:01
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:59:33
↑ 106↓ 860.1%
Half· 13.11 mi
9:39/mi
2:06:08
↑ 19↓ 370.5%
25K· 15.53 mi
11:38/mi
2:34:20
↑ 66↓ 880.2%
30K· 18.64 mi
12:23/mi
3:12:48
↑ 181↓ 1480.2%
20M
10:59/mi
3:27:43
↑ 64↓ 500.2%
21M
12:32/mi
3:40:15
↑ 106↓ 241.6%
35K· 21.75 mi
10:10/mi
3:47:51
↑ 17↓ 861.7%
23M
10:57/mi
4:01:34
↑ 23↓ 630.6%
24M
10:23/mi
4:11:57
↓ 821.3%
40K· 24.85 mi
11:09/mi
4:21:29
↓ 200.3%
25.2M
14:59/mi
4:26:39
↑ 13↓ 160.2%
Finish· 26.22 mi
11:35/mi
4:38:27
↑ 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
Time2:06:08
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:32:19
Pace11:37 /mi
📊Positive Split: 20.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5330:189:4530:18
9:45
-
10K
6.21 mi12:16:1458:399:2628:21
9:07
-0:38
15K
9.32 mi12:47:361:30:019:3931:22
10:06
+0:59
20K
12.43 mi13:17:081:59:339:3729:32
9:30
-0:36
Half
13.11 mi13:23:432:06:089:376:35
9:39
+0:09
25K
15.53 mi13:51:552:34:209:5628:12
11:38
+1:59
30K
18.64 mi14:30:233:12:4810:2138:28
12:23
+0:45
20M
20.00 mi14:45:183:27:4310:2314:55
10:59
-1:24
21M
21.00 mi14:57:503:40:1510:2912:32
12:32
+1:33
35K
21.75 mi15:05:263:47:5110:297:36
10:10
-2:22
23M
23.00 mi15:19:094:01:3410:3013:43
10:57
+0:47
24M
24.00 mi15:29:324:11:5710:3010:23
10:23
-0:34
40K
24.85 mi15:39:044:21:2910:319:32
11:09
+0:46
25.2M
25.20 mi15:44:144:26:3910:355:10
14:59
+3:50
Finish
26.22 mi15:56:024:38:2710:3811:48
11:35
-3:24

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

9:07 /mi

Average Pace

10:38 /mi

Slowest Pace

14:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:44

48% of race

Time at Steady Pace

1:28:33

32% of race

Time at Slower Pace

56:10

20% of race

Average Pace: 10:37 /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 mi11:47:5330:189:4530:18
9:45
#22800
10K
6.21 mi12:16:1458:399:2628:21
9:07
#22174
15K
9.32 mi12:47:361:30:019:3931:22
10:06
#22749
20K
12.43 mi13:17:081:59:339:3729:32
9:30
#22465
Half
13.11 mi13:23:432:06:089:376:35
9:39
#22472
25K
15.53 mi13:51:552:34:209:5628:12
11:38
#23038
30K
18.64 mi14:30:233:12:4810:2138:28
12:23
#23514
20M
20.00 mi14:45:183:27:4310:2314:55
10:59
#23456
21M
21.00 mi14:57:503:40:1510:2912:32
12:32
#23470
35K
21.75 mi15:05:263:47:5110:297:36
10:10
#23418
23M
23.00 mi15:19:094:01:3410:3013:43
10:57
#23350
24M
24.00 mi15:29:324:11:5710:3010:23
10:23
#23287
40K
24.85 mi15:39:044:21:2910:319:32
11:09
#23268
25.2M
25.20 mi15:44:144:26:3910:355:10
14:59
#23334
Finish
26.22 mi15:56:024:38:2710:3811:48
11:35
#23408
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi228009277927723691(Top 89%)9718(Top 85%)9718(Top 1192%)
10K6.21 mi3.10 mi22174+6268936+3418936+34121392(Top 80%)8497(Top 74%)8497(Top 1043%)
15K9.32 mi3.11 mi22749-5759208-2729208-27223691(Top 89%)9718(Top 85%)9718(Top 1192%)
20K12.43 mi3.11 mi22465+2849068+1409068+14021584(Top 81%)8569(Top 75%)8569(Top 1051%)
Half13.11 mi0.68 mi22472-79073-59073-522548(Top 85%)9111(Top 80%)9111(Top 1118%)
25K15.53 mi2.42 mi23038-5669376-3039376-30324827(Top 93%)10412(Top 91%)10412(Top 1278%)
30K18.64 mi3.11 mi23514-4769655-2799655-27924887(Top 93%)10507(Top 92%)10507(Top 1289%)
20M20.00 mi1.36 mi23456+589637+189637+1822677(Top 85%)9346(Top 82%)9346(Top 1147%)
21M21.00 mi1.00 mi23470-149645-89645-823500(Top 88%)9813(Top 86%)9813(Top 1204%)
35K21.75 mi0.75 mi23418+529628+179628+1721703(Top 82%)8889(Top 78%)8889(Top 1091%)
23M23.00 mi1.25 mi23350+689603+259603+2522266(Top 84%)9198(Top 81%)9198(Top 1129%)
24M24.00 mi1.00 mi23287+639573+309573+3021775(Top 82%)8996(Top 79%)8996(Top 1104%)
40K24.85 mi0.85 mi23268+199575-29575-222657(Top 85%)9482(Top 83%)9482(Top 1163%)
25.2M25.20 mi0.35 mi23334-669618-439618-4325703(Top 97%)11029(Top 97%)11029(Top 1353%)
Finish26.22 mi1.02 mi23408-749667-499667-4924788(Top 93%)10551(Top 92%)10551(Top 1295%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23691

Females

9718

F55-59

9718

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21392

Females

8497

F55-59

8497

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23691

Females

9718

F55-59

9718

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21584

Females

8569

F55-59

8569

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

22548

Females

9111

F55-59

9111

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24827

Females

10412

F55-59

10412

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

24887

Females

10507

F55-59

10507

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22677

Females

9346

F55-59

9346

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

23500

Females

9813

F55-59

9813

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21703

Females

8889

F55-59

8889

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

22266

Females

9198

F55-59

9198

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21775

Females

8996

F55-59

8996

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22657

Females

9482

F55-59

9482

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25703

Females

11029

F55-59

11029

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

24788

Females

10551

F55-59

10551

Passing Analysis

Category:
Athletes Passed
1462
Passed By
2070
Net Change
-608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22800
5K → 10K67145+626#22800#22174
10K → 15K34609-575#22174#22749
15K → 20K31127+284#22749#22465
20K → Half2330-7#22465#22472
Half → 25K15581-566#22472#23038
25K → 30K19495-476#23038#23514
30K → 20M8224+58#23514#23456
20M → 21M3448-14#23456#23470
21M → 35K553+52#23470#23418
35K → 23M8416+68#23418#23350
23M → 24M718+63#23350#23287
24M → 40K4425+19#23287#23268
40K → 25.2M672-66#23268#23334
25.2M → Finish1387-74#23334#23408
TOTALS14622070-608
📊

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