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BOSTON MARATHON 2023

Heather Swan

Bib: 27777 F GB

0:00
0:00
/ mi
Masters
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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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
10:16/mi
31:53
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:47/mi
1:02:16
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
10:08/mi
1:33:44
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
10:27/mi
2:06:11
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
10:36/mi
2:13:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:45/mi
2:39:30
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
11:28/mi
3:15:08
↑ 181↓ 1480.2%
138 ft elev
20M
11:36/mi
3:30:54
↑ 64↓ 500.2%
148 ft elev
21M
13:27/mi
3:44:21
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
11:19/mi
3:52:49
↑ 17↓ 861.7%
156 ft elev
23M
11:24/mi
4:07:06
↑ 23↓ 630.6%
116 ft elev
24M
11:15/mi
4:18:21
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:16/mi
4:27:59
↓ 200.3%
20 ft elev
25.2M
12:31/mi
4:32:18
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:41/mi
4:43:11
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:25
Pace10:11 /mi
2nd Half
Distance13.11 mi
Time2:29:46
Pace11:25 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:1331:5310:1631:53
10:16
-
10K
6.21 mi12:19:361:02:1610:0130:23
9:47
-0:29
15K
9.32 mi12:51:041:33:4410:0331:28
10:08
+0:21
20K
12.43 mi13:23:312:06:1110:0932:27
10:27
+0:19
Half
13.11 mi13:30:452:13:2510:117:14
10:36
+0:09
25K
15.53 mi13:56:502:39:3010:1626:05
10:45
+0:09
30K
18.64 mi14:32:283:15:0810:2835:38
11:28
+0:43
20M
20.00 mi14:48:143:30:5410:3315:46
11:36
+0:08
21M
21.00 mi15:01:413:44:2110:4113:27
13:27
+1:51
35K
21.75 mi15:10:093:52:4910:428:28
11:19
-2:08
23M
23.00 mi15:24:264:07:0610:4514:17
11:24
+0:05
24M
24.00 mi15:35:414:18:2110:4611:15
11:15
-0:09
40K
24.85 mi15:45:194:27:5910:479:38
11:16
+0:01
25.2M
25.20 mi15:49:384:32:1810:484:19
12:31
+1:15
Finish
26.22 mi16:00:314:43:1110:4910:53
10:41
-1:50

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

9:47 /mi

Average Pace

10:49 /mi

Slowest Pace

13:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:23

60% of race

Time at Steady Pace

1:35:02

34% of race

Time at Slower Pace

17:46

6% of race

Average Pace: 10:48 /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 mi11:49:1331:5310:1631:53
10:16
#24123
10K
6.21 mi12:19:361:02:1610:0130:23
9:47
#23668
15K
9.32 mi12:51:041:33:4410:0331:28
10:08
#23720
20K
12.43 mi13:23:312:06:1110:0932:27
10:27
#23745
Half
13.11 mi13:30:452:13:2510:117:14
10:36
#23765
25K
15.53 mi13:56:502:39:3010:1626:05
10:45
#23718
30K
18.64 mi14:32:283:15:0810:2835:38
11:28
#23735
20M
20.00 mi14:48:143:30:5410:3315:46
11:36
#23747
21M
21.00 mi15:01:413:44:2110:4113:27
13:27
#23834
35K
21.75 mi15:10:093:52:4910:428:28
11:19
#23835
23M
23.00 mi15:24:264:07:0610:4514:17
11:24
#23812
24M
24.00 mi15:35:414:18:2110:4611:15
11:15
#23795
40K
24.85 mi15:45:194:27:5910:479:38
11:16
#23771
25.2M
25.20 mi15:49:384:32:1810:484:19
12:31
#23765
Finish
26.22 mi16:00:314:43:1110:4910:53
10:41
#23762
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi241239948994823757(Top 89%)9754(Top 85%)9754(Top 1197%)
10K6.21 mi3.10 mi23668+4559709+2399709+23923232(Top 87%)9465(Top 83%)9465(Top 1161%)
15K9.32 mi3.11 mi23720-529738-299738-2923757(Top 89%)9754(Top 85%)9754(Top 1197%)
20K12.43 mi3.11 mi23745-259744-69744-623748(Top 89%)9774(Top 86%)9774(Top 1199%)
Half13.11 mi0.68 mi23765-209759-159759-1524381(Top 92%)10142(Top 89%)10142(Top 1244%)
25K15.53 mi2.42 mi23718+479746+139746+1323603(Top 89%)9735(Top 85%)9735(Top 1194%)
30K18.64 mi3.11 mi23735-179771-259771-2523816(Top 89%)9909(Top 87%)9909(Top 1216%)
20M20.00 mi1.36 mi23747-129788-179788-1723677(Top 89%)9886(Top 87%)9886(Top 1213%)
21M21.00 mi1.00 mi23834-879845-579845-5724535(Top 92%)10361(Top 91%)10361(Top 1271%)
35K21.75 mi0.75 mi23835-19852-79852-723843(Top 90%)10053(Top 88%)10053(Top 1233%)
23M23.00 mi1.25 mi23812+239848+49848+423092(Top 87%)9637(Top 84%)9637(Top 1182%)
24M24.00 mi1.00 mi23795+179848984823515(Top 88%)9904(Top 87%)9904(Top 1215%)
40K24.85 mi0.85 mi23771+249843+59843+522854(Top 86%)9589(Top 84%)9589(Top 1177%)
25.2M25.20 mi0.35 mi23765+69842+19842+123333(Top 88%)9846(Top 86%)9846(Top 1208%)
Finish26.22 mi1.02 mi23762+39848-69848-623393(Top 88%)9856(Top 86%)9856(Top 1209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23757

Females

9754

F55-59

9754

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23232

Females

9465

F55-59

9465

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23757

Females

9754

F55-59

9754

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23748

Females

9774

F55-59

9774

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

24381

Females

10142

F55-59

10142

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

23603

Females

9735

F55-59

9735

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23816

Females

9909

F55-59

9909

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23677

Females

9886

F55-59

9886

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24535

Females

10361

F55-59

10361

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23843

Females

10053

F55-59

10053

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23092

Females

9637

F55-59

9637

23M→24M

23.0 - 24.0 mi

Top 88%
×6story building
+12ft-82ft

Overall

23515

Females

9904

F55-59

9904

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22854

Females

9589

F55-59

9589

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23333

Females

9846

F55-59

9846

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

23393

Females

9856

F55-59

9856

Passing Analysis

Category:
Athletes Passed
1218
Passed By
857
Net Change
+361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24123
5K → 10K52267+455#24123#23668
10K → 15K103155-52#23668#23720
15K → 20K104129-25#23720#23745
20K → Half1737-20#23745#23765
Half → 25K10861+47#23765#23718
25K → 30K98115-17#23718#23735
30K → 20M5163-12#23735#23747
20M → 21M21108-87#23747#23834
21M → 35K2728-1#23834#23835
35K → 23M5633+23#23835#23812
23M → 24M3417+17#23812#23795
24M → 40K4016+24#23795#23771
40K → 25.2M126+6#23771#23765
25.2M → Finish2522+3#23765#23762
TOTALS1218857+361
📊

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