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BOSTON MARATHON 2023

Natasha Parsons

Bib: 6106•F

BC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 13%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 3%
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
7:05/mi
22:01
↑ 97↓ 3451.5%
10K· 6.21 mi
6:45/mi
42:59
↑ 79↓ 1380.4%
15K· 9.32 mi
6:38/mi
1:03:34
↑ 67↓ 78
20K· 12.43 mi
6:44/mi
1:24:28
↑ 106↓ 860.1%
Half· 13.11 mi
6:34/mi
1:28:57
↑ 19↓ 370.5%
25K· 15.53 mi
6:46/mi
1:45:22
↑ 66↓ 880.2%
30K· 18.64 mi
6:58/mi
2:07:01
↑ 181↓ 1480.2%
20M
6:51/mi
2:16:20
↑ 64↓ 500.2%
21M
7:12/mi
2:23:32
↑ 106↓ 241.6%
35K· 21.75 mi
6:30/mi
2:28:24
↑ 17↓ 861.7%
23M
6:42/mi
2:36:47
↑ 23↓ 630.6%
24M
6:24/mi
2:43:11
↓ 821.3%
40K· 24.85 mi
6:38/mi
2:48:51
↓ 200.3%
25.2M
7:21/mi
2:51:23
↑ 13↓ 160.2%
Finish· 26.22 mi
6:29/mi
2:57:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:28:57
Pace6:47 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:29:02
Pace6:48 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:5922:017:0522:01
7:05
-
10K
6.21 mi11:08:5742:596:5520:58
6:45
-0:20
15K
9.32 mi11:29:321:03:346:4920:35
6:38
-0:07
20K
12.43 mi11:50:261:24:286:4820:54
6:44
+0:06
Half
13.11 mi11:54:551:28:576:474:29
6:34
-0:10
25K
15.53 mi12:11:201:45:226:4716:25
6:46
+0:12
30K
18.64 mi12:32:592:07:016:4921:39
6:58
+0:12
20M
20.00 mi12:42:182:16:206:499:19
6:51
-0:07
21M
21.00 mi12:49:302:23:326:507:12
7:12
+0:21
35K
21.75 mi12:54:222:28:246:494:52
6:30
-0:42
23M
23.00 mi13:02:452:36:476:498:23
6:42
+0:12
24M
24.00 mi13:09:092:43:116:486:24
6:24
-0:18
40K
24.85 mi13:14:492:48:516:485:40
6:38
+0:14
25.2M
25.20 mi13:17:212:51:236:482:32
7:21
+0:43
Finish
26.22 mi13:23:572:57:596:486:36
6:29
-0:52

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

6:24 /mi

Average Pace

6:48 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:14

82% of race

Time at Steady Pace

31:45

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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 mi10:47:5922:017:0522:01
7:05
#6803
10K
6.21 mi11:08:5742:596:5520:58
6:45
#5960
15K
9.32 mi11:29:321:03:346:4920:35
6:38
#5183
20K
12.43 mi11:50:261:24:286:4820:54
6:44
#4816
Half
13.11 mi11:54:551:28:576:474:29
6:34
#4714
25K
15.53 mi12:11:201:45:226:4716:25
6:46
#4531
30K
18.64 mi12:32:592:07:016:4921:39
6:58
#4426
20M
20.00 mi12:42:182:16:206:499:19
6:51
#4297
21M
21.00 mi12:49:302:23:326:507:12
7:12
#4183
35K
21.75 mi12:54:222:28:246:494:52
6:30
#4080
23M
23.00 mi13:02:452:36:476:498:23
6:42
#3906
24M
24.00 mi13:09:092:43:116:486:24
6:24
#3726
40K
24.85 mi13:14:492:48:516:485:40
6:38
#3592
25.2M
25.20 mi13:17:212:51:236:482:32
7:21
#3582
Finish
26.22 mi13:23:572:57:596:486:36
6:29
#3489
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi68036676673528(Top 13%)187(Top 2%)187(Top 4%)
10K6.21 mi3.10 mi5960+843499+168499+1684822(Top 18%)337(Top 3%)337(Top 7%)
15K9.32 mi3.11 mi5183+777372+127372+1273528(Top 13%)187(Top 2%)187(Top 4%)
20K12.43 mi3.11 mi4816+367324+48324+483791(Top 14%)212(Top 2%)212(Top 4%)
Half13.11 mi0.68 mi4714+102316+8316+83303(Top 12%)155(Top 1%)155(Top 3%)
25K15.53 mi2.42 mi4531+183294+22294+223920(Top 15%)231(Top 2%)231(Top 5%)
30K18.64 mi3.11 mi4426+105287+7287+74153(Top 16%)277(Top 2%)277(Top 6%)
20M20.00 mi1.36 mi4297+129272+15272+153190(Top 12%)197(Top 2%)197(Top 4%)
21M21.00 mi1.00 mi4183+114261+11261+113140(Top 12%)198(Top 2%)198(Top 4%)
35K21.75 mi0.75 mi4080+103249+12249+122494(Top 9%)134(Top 1%)134(Top 3%)
23M23.00 mi1.25 mi3906+174231+18231+182193(Top 8%)125(Top 1%)125(Top 3%)
24M24.00 mi1.00 mi3726+180218+13218+131705(Top 6%)97(Top 0.8%)97(Top 2%)
40K24.85 mi0.85 mi3592+134204+14204+142067(Top 8%)135(Top 1%)135(Top 3%)
25.2M25.20 mi0.35 mi3582+10203+1203+13254(Top 12%)284(Top 2%)284(Top 6%)
Finish26.22 mi1.02 mi3489+93201+2201+22399(Top 9%)185(Top 2%)185(Top 4%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21story building
+97ft-345ft

Overall

3528

Females

187

F18-39

187

5K→10K

3.1 - 6.2 mi

Top 18%
×5story building
+79ft-138ft

Overall

4822

Females

337

F18-39

337

10K→15K

6.2 - 9.3 mi

Top 13%
×3story building
+67ft-78ft

Overall

3528

Females

187

F18-39

187

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

3791

Females

212

F18-39

212

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3303

Females

155

F18-39

155

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

3920

Females

231

F18-39

231

25K→30K

15.5 - 18.6 mi

Top 16%
×9story building
+181ft-148ft

Overall

4153

Females

277

F18-39

277

30K→20M

18.6 - 20.0 mi

Top 12%
×5story building
+64ft-50ft

Overall

3190

Females

197

F18-39

197

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3140

Females

198

F18-39

198

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2494

Females

134

F18-39

134

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2193

Females

125

F18-39

125

23M→24M

23.0 - 24.0 mi

Top 6%
×6story building
+12ft-82ft

Overall

1705

Females

97

F18-39

97

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2067

Females

135

F18-39

135

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3254

Females

284

F18-39

284

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2399

Females

185

F18-39

185

Passing Analysis

Category:
Athletes Passed
3495
Passed By
181
Net Change
+3314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6803
5K → 10K8518+843#6803#5960
10K → 15K7792+777#5960#5183
15K → 20K3747+367#5183#4816
20K → Half1031+102#4816#4714
Half → 25K20320+183#4714#4531
25K → 30K17469+105#4531#4426
30K → 20M14415+129#4426#4297
20M → 21M13016+114#4297#4183
21M → 35K1063+103#4183#4080
35K → 23M1784+174#4080#3906
23M → 24M1800+180#3906#3726
24M → 40K1362+134#3726#3592
40K → 25.2M2414+10#3592#3582
25.2M → Finish11320+93#3582#3489
TOTALS3495181+3314
📊

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