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BOSTON MARATHON 2023

Samantha Spina

Bib: 27275•F

MA

0:00
0:00
/ mi
Masters
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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
10:51/mi
33:42
↑ 97↓ 3451.5%
10K· 6.21 mi
10:59/mi
1:07:49
↑ 79↓ 1380.4%
15K· 9.32 mi
11:14/mi
1:42:44
↑ 67↓ 78
20K· 12.43 mi
11:58/mi
2:19:56
↑ 106↓ 860.1%
Half· 13.11 mi
11:48/mi
2:27:59
↑ 19↓ 370.5%
25K· 15.53 mi
12:19/mi
2:57:50
↑ 66↓ 880.2%
30K· 18.64 mi
13:38/mi
3:40:12
↑ 181↓ 1480.2%
20M
13:56/mi
3:59:08
↑ 64↓ 500.2%
21M
15:51/mi
4:14:59
↑ 106↓ 241.6%
35K· 21.75 mi
13:21/mi
4:24:58
↑ 17↓ 861.7%
23M
13:37/mi
4:42:01
↑ 23↓ 630.6%
24M
13:38/mi
4:55:39
↓ 821.3%
40K· 24.85 mi
13:59/mi
5:07:36
↓ 200.3%
25.2M
14:30/mi
5:12:36
↑ 13↓ 160.2%
Finish· 26.22 mi
12:00/mi
5:24:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:27:59
Pace11:17 /mi
2nd Half
Distance13.11 mi
Time2:56:51
Pace13:29 /mi
📊Positive Split: 19.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1833:4210:5133:42
10:51
-
10K
6.21 mi12:25:251:07:4910:5534:07
10:59
+0:08
15K
9.32 mi13:00:201:42:4411:0134:55
11:14
+0:15
20K
12.43 mi13:37:322:19:5611:1637:12
11:58
+0:44
Half
13.11 mi13:45:352:27:5911:178:03
11:48
-0:10
25K
15.53 mi14:15:262:57:5011:2729:51
12:19
+0:31
30K
18.64 mi14:57:483:40:1211:4942:22
13:38
+1:19
20M
20.00 mi15:16:443:59:0811:5718:56
13:56
+0:18
21M
21.00 mi15:32:354:14:5912:0915:51
15:51
+1:55
35K
21.75 mi15:42:344:24:5812:119:59
13:21
-2:30
23M
23.00 mi15:59:374:42:0112:1617:03
13:37
+0:16
24M
24.00 mi16:13:154:55:3912:1913:38
13:38
+0:01
40K
24.85 mi16:25:125:07:3612:2311:57
13:59
+0:21
25.2M
25.20 mi16:30:125:12:3612:245:00
14:30
+0:31
Finish
26.22 mi16:42:265:24:5012:2412:14
12:00
-2:30

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

10:51 /mi

Average Pace

12:24 /mi

Slowest Pace

15:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:04

59% of race

Time at Steady Pace

1:53:55

35% of race

Time at Slower Pace

20:51

6% of race

Average Pace: 12:23 /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 mi11:51:1833:4210:5133:42
10:51
#25449
10K
6.21 mi12:25:251:07:4910:5534:07
10:59
#25470
15K
9.32 mi13:00:201:42:4411:0134:55
11:14
#25471
20K
12.43 mi13:37:322:19:5611:1637:12
11:58
#25543
Half
13.11 mi13:45:352:27:5911:178:03
11:48
#25571
25K
15.53 mi14:15:262:57:5011:2729:51
12:19
#25551
30K
18.64 mi14:57:483:40:1211:4942:22
13:38
#25648
20M
20.00 mi15:16:443:59:0811:5718:56
13:56
#25671
21M
21.00 mi15:32:354:14:5912:0915:51
15:51
#25709
35K
21.75 mi15:42:344:24:5812:119:59
13:21
#25721
23M
23.00 mi15:59:374:42:0112:1617:03
13:37
#25733
24M
24.00 mi16:13:154:55:3912:1913:38
13:38
#25743
40K
24.85 mi16:25:125:07:3612:2311:57
13:59
#25753
25.2M
25.20 mi16:30:125:12:3612:245:00
14:30
#25752
Finish
26.22 mi16:42:265:24:5012:2412:14
12:00
#25749
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25449106951069525466(Top 96%)10724(Top 94%)10724(Top 571%)
10K6.21 mi3.10 mi25470-2110712-1710712-1725451(Top 96%)10702(Top 94%)10702(Top 570%)
15K9.32 mi3.11 mi25471-110720-810720-825466(Top 96%)10724(Top 94%)10724(Top 571%)
20K12.43 mi3.11 mi25543-7210775-5510775-5525642(Top 96%)10852(Top 95%)10852(Top 578%)
Half13.11 mi0.68 mi25571-2810793-1810793-1825735(Top 97%)10919(Top 96%)10919(Top 581%)
25K15.53 mi2.42 mi25551+2010787+610787+625398(Top 95%)10737(Top 94%)10737(Top 572%)
30K18.64 mi3.11 mi25648-9710855-6810855-6825837(Top 97%)11016(Top 96%)11016(Top 587%)
20M20.00 mi1.36 mi25671-2310873-1810873-1825790(Top 97%)11010(Top 96%)11010(Top 586%)
21M21.00 mi1.00 mi25709-3810897-2410897-2426170(Top 98%)11207(Top 98%)11207(Top 597%)
35K21.75 mi0.75 mi25721-1210906-910906-925791(Top 97%)11040(Top 97%)11040(Top 588%)
23M23.00 mi1.25 mi25733-1210916-1010916-1025587(Top 96%)10952(Top 96%)10952(Top 583%)
24M24.00 mi1.00 mi25743-1010925-910925-925889(Top 97%)11110(Top 97%)11110(Top 592%)
40K24.85 mi0.85 mi25753-1010939-1410939-1425677(Top 96%)11013(Top 96%)11013(Top 586%)
25.2M25.20 mi0.35 mi25752+110941-210941-225405(Top 95%)10883(Top 95%)10883(Top 579%)
Finish26.22 mi1.02 mi25749+310942-110942-125241(Top 95%)10790(Top 94%)10790(Top 575%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25466

Females

10724

F40-44

10724

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

25451

Females

10702

F40-44

10702

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25466

Females

10724

F40-44

10724

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

25642

Females

10852

F40-44

10852

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25735

Females

10919

F40-44

10919

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

25398

Females

10737

F40-44

10737

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

25837

Females

11016

F40-44

11016

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

25790

Females

11010

F40-44

11010

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

26170

Females

11207

F40-44

11207

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

25791

Females

11040

F40-44

11040

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

25587

Females

10952

F40-44

10952

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25889

Females

11110

F40-44

11110

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25677

Females

11013

F40-44

11013

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25405

Females

10883

F40-44

10883

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25241

Females

10790

F40-44

10790

Passing Analysis

Category:
Athletes Passed
520
Passed By
820
Net Change
-300
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25449
5K → 10K148169-21#25449#25470
10K → 15K102103-1#25470#25471
15K → 20K64136-72#25471#25543
20K → Half937-28#25543#25571
Half → 25K7151+20#25571#25551
25K → 30K30127-97#25551#25648
30K → 20M2144-23#25648#25671
20M → 21M745-38#25671#25709
21M → 35K820-12#25709#25721
35K → 23M1830-12#25721#25733
23M → 24M919-10#25733#25743
24M → 40K1323-10#25743#25753
40K → 25.2M65+1#25753#25752
25.2M → Finish1411+3#25752#25749
TOTALS520820-300
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing