Boston Marathon logo
BOSTON MARATHON 2023

Nancy Hatfield

Bib: 24365•F

ID

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F65-69)
#0 / 221
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
9:47/mi
30:23
↑ 97↓ 3451.5%
10K· 6.21 mi
10:22/mi
1:02:35
↑ 79↓ 1380.4%
15K· 9.32 mi
9:55/mi
1:33:23
↑ 67↓ 78
20K· 12.43 mi
10:33/mi
2:06:10
↑ 106↓ 860.1%
Half· 13.11 mi
9:48/mi
2:12:51
↑ 19↓ 370.5%
25K· 15.53 mi
10:34/mi
2:38:29
↑ 66↓ 880.2%
30K· 18.64 mi
11:07/mi
3:13:02
↑ 181↓ 1480.2%
20M
10:28/mi
3:27:15
↑ 64↓ 500.2%
21M
11:48/mi
3:39:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:19/mi
3:46:46
↑ 17↓ 861.7%
23M
10:33/mi
3:59:59
↑ 23↓ 630.6%
24M
10:01/mi
4:10:00
↓ 821.3%
40K· 24.85 mi
10:28/mi
4:18:57
↓ 200.3%
25.2M
11:27/mi
4:22:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:25/mi
4:32:30
↑ 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
Time2:12:51
Pace10:08 /mi
2nd Half
Distance13.11 mi
Time2:19:39
Pace10:39 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4230:239:4730:23
9:47
-
10K
6.21 mi12:17:541:02:3510:0432:12
10:22
+0:35
15K
9.32 mi12:48:421:33:2310:0130:48
9:55
-0:27
20K
12.43 mi13:21:292:06:1010:0932:47
10:33
+0:38
Half
13.11 mi13:28:102:12:5110:086:41
9:48
-0:45
25K
15.53 mi13:53:482:38:2910:1225:38
10:34
+0:46
30K
18.64 mi14:28:213:13:0210:2134:33
11:07
+0:33
20M
20.00 mi14:42:343:27:1510:2214:13
10:28
-0:39
21M
21.00 mi14:54:223:39:0310:2611:48
11:48
+1:20
35K
21.75 mi15:02:053:46:4610:267:43
10:19
-1:29
23M
23.00 mi15:15:183:59:5910:2613:13
10:33
+0:14
24M
24.00 mi15:25:194:10:0010:2510:01
10:01
-0:32
40K
24.85 mi15:34:164:18:5710:258:57
10:28
+0:27
25.2M
25.20 mi15:38:134:22:5410:263:57
11:27
+0:59
Finish
26.22 mi15:47:494:32:3010:249:36
9:25
-2:02

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

9:25 /mi

Average Pace

10:24 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:29

32% of race

Time at Steady Pace

2:14:43

49% of race

Time at Slower Pace

50:18

18% of race

Average Pace: 10:24 /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 mi11:45:4230:239:4730:23
9:47
#22861
10K
6.21 mi12:17:541:02:3510:0432:12
10:22
#23790
15K
9.32 mi12:48:421:33:2310:0130:48
9:55
#23647
20K
12.43 mi13:21:292:06:1010:0932:47
10:33
#23736
Half
13.11 mi13:28:102:12:5110:086:41
9:48
#23687
25K
15.53 mi13:53:482:38:2910:1225:38
10:34
#23608
30K
18.64 mi14:28:213:13:0210:2134:33
11:07
#23535
20M
20.00 mi14:42:343:27:1510:2214:13
10:28
#23407
21M
21.00 mi14:54:223:39:0310:2611:48
11:48
#23364
35K
21.75 mi15:02:053:46:4610:267:43
10:19
#23313
23M
23.00 mi15:15:183:59:5910:2613:13
10:33
#23212
24M
24.00 mi15:25:194:10:0010:2510:01
10:01
#23118
40K
24.85 mi15:34:164:18:5710:258:57
10:28
#23027
25.2M
25.20 mi15:38:134:22:5410:263:57
11:27
#23008
Finish
26.22 mi15:47:494:32:3010:249:36
9:25
#22926
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi228619310931023339(Top 88%)9513(Top 83%)9513(Top 4305%)
10K6.21 mi3.10 mi23790-9299780-4709780-47024424(Top 92%)10128(Top 89%)10128(Top 4583%)
15K9.32 mi3.11 mi23647+1439700+809700+8023339(Top 88%)9513(Top 83%)9513(Top 4305%)
20K12.43 mi3.11 mi23736-899736-369736-3623923(Top 90%)9855(Top 86%)9855(Top 4459%)
Half13.11 mi0.68 mi23687+499716+209716+2022886(Top 86%)9296(Top 81%)9296(Top 4206%)
25K15.53 mi2.42 mi23608+799677+399677+3923308(Top 88%)9560(Top 84%)9560(Top 4326%)
30K18.64 mi3.11 mi23535+739665+129665+1223281(Top 87%)9614(Top 84%)9614(Top 4350%)
20M20.00 mi1.36 mi23407+1289611+549611+5421652(Top 81%)8785(Top 77%)8785(Top 3975%)
21M21.00 mi1.00 mi23364+439593+189593+1822426(Top 84%)9239(Top 81%)9239(Top 4181%)
35K21.75 mi0.75 mi23313+519571+229571+2222052(Top 83%)9083(Top 80%)9083(Top 4110%)
23M23.00 mi1.25 mi23212+1019529+429529+4221460(Top 81%)8769(Top 77%)8769(Top 3968%)
24M24.00 mi1.00 mi23118+949489+409489+4020857(Top 78%)8473(Top 74%)8473(Top 3834%)
40K24.85 mi0.85 mi23027+919460+299460+2921156(Top 79%)8703(Top 76%)8703(Top 3938%)
25.2M25.20 mi0.35 mi23008+199444+169444+1621501(Top 81%)8867(Top 78%)8867(Top 4012%)
Finish26.22 mi1.02 mi22926+829411+339411+3319874(Top 75%)7931(Top 69%)7931(Top 3589%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

23339

Females

9513

F65-69

9513

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24424

Females

10128

F65-69

10128

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

23339

Females

9513

F65-69

9513

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23923

Females

9855

F65-69

9855

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22886

Females

9296

F65-69

9296

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23308

Females

9560

F65-69

9560

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

23281

Females

9614

F65-69

9614

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21652

Females

8785

F65-69

8785

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22426

Females

9239

F65-69

9239

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

22052

Females

9083

F65-69

9083

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21460

Females

8769

F65-69

8769

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20857

Females

8473

F65-69

8473

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21156

Females

8703

F65-69

8703

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21501

Females

8867

F65-69

8867

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

19874

Females

7931

F65-69

7931

Passing Analysis

Category:
Athletes Passed
1282
Passed By
1347
Net Change
-65
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22861
5K → 10K20949-929#22861#23790
10K → 15K19249+143#23790#23647
15K → 20K83172-89#23647#23736
20K → Half512+49#23736#23687
Half → 25K12748+79#23687#23608
25K → 30K13663+73#23608#23535
30K → 20M1357+128#23535#23407
20M → 21M6421+43#23407#23364
21M → 35K576+51#23364#23313
35K → 23M1087+101#23313#23212
23M → 24M973+94#23212#23118
24M → 40K943+91#23118#23027
40K → 25.2M278+19#23027#23008
25.2M → Finish919+82#23008#22926
TOTALS12821347-65
📊

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