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BOSTON MARATHON 2023

Nakisa Herrick

Bib: 20414•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
Masters (Masters Women)
#0 / 6539
Top 26%
Division (F40-44)
#0 / 1878
Top 46%
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
8:29/mi
26:20
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
51:39
↑ 79↓ 1380.4%
15K· 9.32 mi
8:16/mi
1:17:19
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:43:02
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:48:42
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:09:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:34:59
↑ 181↓ 1480.2%
20M
8:12/mi
2:46:08
↑ 64↓ 500.2%
21M
8:31/mi
2:54:39
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
3:00:42
↑ 17↓ 861.7%
23M
8:18/mi
3:11:06
↑ 23↓ 630.6%
24M
7:57/mi
3:19:03
↓ 821.3%
40K· 24.85 mi
8:09/mi
3:26:01
↓ 200.3%
25.2M
8:48/mi
3:29:03
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:37:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:42
Pace8:17 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:48:22
Pace8:16 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2026:208:2926:20
8:29
-
10K
6.21 mi11:44:3951:398:1925:19
8:09
-0:20
15K
9.32 mi12:10:191:17:198:1825:40
8:16
+0:07
20K
12.43 mi12:36:021:43:028:1725:43
8:17
+0:01
Half
13.11 mi12:41:421:48:428:175:40
8:18
+0:01
25K
15.53 mi13:02:012:09:018:1820:19
8:23
+0:05
30K
18.64 mi13:27:592:34:598:1925:58
8:21
-0:02
20M
20.00 mi13:39:082:46:088:1811:09
8:12
-0:09
21M
21.00 mi13:47:392:54:398:198:31
8:31
+0:19
35K
21.75 mi13:53:423:00:428:196:03
8:05
-0:26
23M
23.00 mi14:04:063:11:068:1910:24
8:18
+0:13
24M
24.00 mi14:12:033:19:038:187:57
7:57
-0:21
40K
24.85 mi14:19:013:26:018:176:58
8:09
+0:12
25.2M
25.20 mi14:22:033:29:038:183:02
8:48
+0:39
Finish
26.22 mi14:30:043:37:048:178:01
7:52
-0:56

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

7:52 /mi

Average Pace

8:17 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:02

99% of race

Time at Steady Pace

3:02

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:19:2026:208:2926:20
8:29
#17394
10K
6.21 mi11:44:3951:398:1925:19
8:09
#16597
15K
9.32 mi12:10:191:17:198:1825:40
8:16
#16480
20K
12.43 mi12:36:021:43:028:1725:43
8:17
#16206
Half
13.11 mi12:41:421:48:428:175:40
8:18
#16229
25K
15.53 mi13:02:012:09:018:1820:19
8:23
#16071
30K
18.64 mi13:27:592:34:598:1925:58
8:21
#15577
20M
20.00 mi13:39:082:46:088:1811:09
8:12
#15280
21M
21.00 mi13:47:392:54:398:198:31
8:31
#15000
35K
21.75 mi13:53:423:00:428:196:03
8:05
#14909
23M
23.00 mi14:04:063:11:068:1910:24
8:18
#14727
24M
24.00 mi14:12:033:19:038:187:57
7:57
#14535
40K
24.85 mi14:19:013:26:018:176:58
8:09
#14401
25.2M
25.20 mi14:22:033:29:038:183:02
8:48
#14348
Finish
26.22 mi14:30:043:37:048:178:01
7:52
#14210
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi173946189618916292(Top 61%)5467(Top 48%)5467(Top 291%)
10K6.21 mi3.10 mi16597+7975640+5495640+54915891(Top 60%)5200(Top 46%)5200(Top 277%)
15K9.32 mi3.11 mi16480+1175577+635577+6316292(Top 61%)5467(Top 48%)5467(Top 291%)
20K12.43 mi3.11 mi16206+2745426+1515426+15115469(Top 58%)5008(Top 44%)5008(Top 267%)
Half13.11 mi0.68 mi16229-235444-185444-1816509(Top 62%)5592(Top 49%)5592(Top 298%)
25K15.53 mi2.42 mi16071+1585380+645380+6415451(Top 58%)5106(Top 45%)5106(Top 272%)
30K18.64 mi3.11 mi15577+4945112+2685112+26813419(Top 50%)3987(Top 35%)3987(Top 212%)
20M20.00 mi1.36 mi15280+2974958+1544958+15411770(Top 44%)3155(Top 28%)3155(Top 168%)
21M21.00 mi1.00 mi15000+2804794+1644794+16410625(Top 40%)2698(Top 24%)2698(Top 144%)
35K21.75 mi0.75 mi14909+914754+404754+4012755(Top 48%)3862(Top 34%)3862(Top 206%)
23M23.00 mi1.25 mi14727+1824671+834671+8311969(Top 45%)3507(Top 31%)3507(Top 187%)
24M24.00 mi1.00 mi14535+1924571+1004571+10010939(Top 41%)3070(Top 27%)3070(Top 163%)
40K24.85 mi0.85 mi14401+1344517+544517+5411075(Top 42%)3200(Top 28%)3200(Top 170%)
25.2M25.20 mi0.35 mi14348+534494+234494+2311423(Top 43%)3435(Top 30%)3435(Top 183%)
Finish26.22 mi1.02 mi14210+1384429+654429+6511199(Top 42%)3305(Top 29%)3305(Top 176%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16292

Females

5467

F40-44

5467

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

15891

Females

5200

F40-44

5200

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16292

Females

5467

F40-44

5467

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15469

Females

5008

F40-44

5008

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16509

Females

5592

F40-44

5592

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15451

Females

5106

F40-44

5106

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

13419

Females

3987

F40-44

3987

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11770

Females

3155

F40-44

3155

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10625

Females

2698

F40-44

2698

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12755

Females

3862

F40-44

3862

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

11969

Females

3507

F40-44

3507

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10939

Females

3070

F40-44

3070

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11075

Females

3200

F40-44

3200

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11423

Females

3435

F40-44

3435

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11199

Females

3305

F40-44

3305

Passing Analysis

Category:
Athletes Passed
3656
Passed By
472
Net Change
+3184
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17394
5K → 10K89093+797#17394#16597
10K → 15K254137+117#16597#16480
15K → 20K32551+274#16480#16206
20K → Half3255-23#16206#16229
Half → 25K22567+158#16229#16071
25K → 30K50915+494#16071#15577
30K → 20M2981+297#15577#15280
20M → 21M2833+280#15280#15000
21M → 35K10110+91#15000#14909
35K → 23M19614+182#14909#14727
23M → 24M1964+192#14727#14535
24M → 40K1395+134#14535#14401
40K → 25.2M607+53#14401#14348
25.2M → Finish14810+138#14348#14210
TOTALS3656472+3184
📊

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