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BOSTON MARATHON 2023

Heidi Newton

Bib: 31817•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
11:00/mi
34:09
↑ 97↓ 3451.5%
10K· 6.21 mi
11:21/mi
1:09:25
↑ 79↓ 1380.4%
15K· 9.32 mi
11:56/mi
1:46:31
↑ 67↓ 78
20K· 12.43 mi
12:17/mi
2:24:42
↑ 106↓ 860.1%
Half· 13.11 mi
11:38/mi
2:32:38
↑ 19↓ 370.5%
25K· 15.53 mi
13:07/mi
3:04:26
↑ 66↓ 880.2%
30K· 18.64 mi
13:39/mi
3:46:50
↑ 181↓ 1480.2%
20M
13:32/mi
4:05:14
↑ 64↓ 500.2%
21M
15:07/mi
4:20:21
↑ 106↓ 241.6%
35K· 21.75 mi
12:50/mi
4:29:57
↑ 17↓ 861.7%
23M
14:40/mi
4:48:19
↑ 23↓ 630.6%
24M
12:54/mi
5:01:13
↓ 821.3%
40K· 24.85 mi
13:41/mi
5:12:55
↓ 200.3%
25.2M
15:02/mi
5:18:06
↑ 13↓ 160.2%
Finish· 26.22 mi
12:01/mi
5:30:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:32:38
Pace11:39 /mi
2nd Half
Distance13.11 mi
Time2:57:43
Pace13:33 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5134:0911:0034:09
11:00
-
10K
6.21 mi12:29:071:09:2511:1035:16
11:21
+0:21
15K
9.32 mi13:06:131:46:3111:2637:06
11:56
+0:35
20K
12.43 mi13:44:242:24:4211:3938:11
12:17
+0:21
Half
13.11 mi13:52:202:32:3811:397:56
11:38
-0:39
25K
15.53 mi14:24:083:04:2611:5231:48
13:07
+1:29
30K
18.64 mi15:06:323:46:5012:1042:24
13:39
+0:32
20M
20.00 mi15:24:564:05:1412:1618:24
13:32
-0:07
21M
21.00 mi15:40:034:20:2112:2415:07
15:07
+1:35
35K
21.75 mi15:49:394:29:5712:259:36
12:50
-2:17
23M
23.00 mi16:08:014:48:1912:3218:22
14:40
+1:50
24M
24.00 mi16:20:555:01:1312:3312:54
12:54
-1:46
40K
24.85 mi16:32:375:12:5512:3511:42
13:41
+0:47
25.2M
25.20 mi16:37:485:18:0612:375:11
15:02
+1:21
Finish
26.22 mi16:50:035:30:2112:3712:15
12:01
-3:01

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

11:00 /mi

Average Pace

12:37 /mi

Slowest Pace

15:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:42

38% of race

Time at Steady Pace

1:32:29

28% of race

Time at Slower Pace

1:51:10

34% of race

Average Pace: 12:36 /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 mi11:53:5134:0911:0034:09
11:00
#25666
10K
6.21 mi12:29:071:09:2511:1035:16
11:21
#25795
15K
9.32 mi13:06:131:46:3111:2637:06
11:56
#25922
20K
12.43 mi13:44:242:24:4211:3938:11
12:17
#25912
Half
13.11 mi13:52:202:32:3811:397:56
11:38
#25901
25K
15.53 mi14:24:083:04:2611:5231:48
13:07
#25915
30K
18.64 mi15:06:323:46:5012:1042:24
13:39
#25921
20M
20.00 mi15:24:564:05:1412:1618:24
13:32
#25905
21M
21.00 mi15:40:034:20:2112:2415:07
15:07
#25908
35K
21.75 mi15:49:394:29:5712:259:36
12:50
#25902
23M
23.00 mi16:08:014:48:1912:3218:22
14:40
#25926
24M
24.00 mi16:20:555:01:1312:3312:54
12:54
#25918
40K
24.85 mi16:32:375:12:5512:3511:42
13:41
#25915
25.2M
25.20 mi16:37:485:18:0612:375:11
15:02
#25909
Finish
26.22 mi16:50:035:30:2112:3712:15
12:01
#25904
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi25666108331083326019(Top 98%)11050(Top 97%)11050(Top 608%)
10K6.21 mi3.10 mi25795-12910919-8610919-8625844(Top 97%)10943(Top 96%)10943(Top 602%)
15K9.32 mi3.11 mi25922-12710996-7710996-7726019(Top 98%)11050(Top 97%)11050(Top 608%)
20K12.43 mi3.11 mi25912+1010980+1610980+1625831(Top 97%)10958(Top 96%)10958(Top 603%)
Half13.11 mi0.68 mi25901+1110974+610974+625596(Top 96%)10844(Top 95%)10844(Top 597%)
25K15.53 mi2.42 mi25915-1410996-2210996-2225934(Top 97%)11043(Top 97%)11043(Top 608%)
30K18.64 mi3.11 mi25921-611008-1211008-1225847(Top 97%)11023(Top 96%)11023(Top 607%)
20M20.00 mi1.36 mi25905+1610998+1010998+1025567(Top 96%)10893(Top 95%)10893(Top 600%)
21M21.00 mi1.00 mi25908-311006-811006-825796(Top 97%)11001(Top 96%)11001(Top 605%)
35K21.75 mi0.75 mi25902+611008-211008-225445(Top 96%)10886(Top 95%)10886(Top 599%)
23M23.00 mi1.25 mi25926-2411025-1711025-1726184(Top 98%)11232(Top 98%)11232(Top 618%)
24M24.00 mi1.00 mi25918+811023+211023+225414(Top 95%)10888(Top 95%)10888(Top 599%)
40K24.85 mi0.85 mi25915+311019+411019+425498(Top 96%)10921(Top 96%)10921(Top 601%)
25.2M25.20 mi0.35 mi25909+611017+211017+225727(Top 97%)11042(Top 97%)11042(Top 608%)
Finish26.22 mi1.02 mi25904+511014+311014+325255(Top 95%)10797(Top 95%)10797(Top 594%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

26019

Females

11050

F45-49

11050

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

25844

Females

10943

F45-49

10943

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

26019

Females

11050

F45-49

11050

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

25831

Females

10958

F45-49

10958

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25596

Females

10844

F45-49

10844

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25934

Females

11043

F45-49

11043

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

25847

Females

11023

F45-49

11023

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25567

Females

10893

F45-49

10893

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25796

Females

11001

F45-49

11001

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

25445

Females

10886

F45-49

10886

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

26184

Females

11232

F45-49

11232

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25414

Females

10888

F45-49

10888

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25498

Females

10921

F45-49

10921

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25727

Females

11042

F45-49

11042

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25255

Females

10797

F45-49

10797

Passing Analysis

Category:
Athletes Passed
409
Passed By
647
Net Change
-238
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25666
5K → 10K77206-129#25666#25795
10K → 15K35162-127#25795#25922
15K → 20K6656+10#25922#25912
20K → Half176+11#25912#25901
Half → 25K2943-14#25901#25915
25K → 30K4753-6#25915#25921
30K → 20M3519+16#25921#25905
20M → 21M1720-3#25905#25908
21M → 35K1812+6#25908#25902
35K → 23M1135-24#25902#25926
23M → 24M179+8#25926#25918
24M → 40K1512+3#25918#25915
40K → 25.2M115+6#25915#25909
25.2M → Finish149+5#25909#25904
TOTALS409647-238
📊

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