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BOSTON MARATHON 2023

Nita Brooks

Bib: 16520•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
Masters (Masters Women)
#0 / 6539
Top 27%
Division (F45-49)
#0 / 1817
Top 30%
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
8:03/mi
25:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
49:58
↑ 79↓ 1380.4%
15K· 9.32 mi
8:00/mi
1:14:50
↑ 67↓ 78
20K· 12.43 mi
8:10/mi
1:40:12
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:45:43
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
2:05:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:32:07
↑ 181↓ 1480.2%
20M
8:35/mi
2:43:47
↑ 64↓ 500.2%
21M
9:16/mi
2:53:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:59:06
↑ 17↓ 861.7%
23M
8:50/mi
3:10:10
↑ 23↓ 630.6%
24M
8:17/mi
3:18:27
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:25:58
↓ 200.3%
25.2M
9:43/mi
3:29:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:37:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:43
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:52:16
Pace8:34 /mi
📊Positive Split: 6.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2725:028:0325:02
8:03
-
10K
6.21 mi11:41:2349:588:0224:56
8:02
-0:01
15K
9.32 mi12:06:151:14:508:0224:52
8:00
-0:02
20K
12.43 mi12:31:371:40:128:0425:22
8:10
+0:10
Half
13.11 mi12:37:081:45:438:045:31
8:05
-0:05
25K
15.53 mi12:57:072:05:428:0619:59
8:15
+0:10
30K
18.64 mi13:23:322:32:078:1026:25
8:30
+0:15
20M
20.00 mi13:35:122:43:478:1111:40
8:35
+0:05
21M
21.00 mi13:44:282:53:038:149:16
9:16
+0:41
35K
21.75 mi13:50:312:59:068:146:03
8:05
-1:11
23M
23.00 mi14:01:353:10:108:1611:04
8:50
+0:45
24M
24.00 mi14:09:523:18:278:168:17
8:17
-0:33
40K
24.85 mi14:17:233:25:588:177:31
8:47
+0:30
25.2M
25.20 mi14:20:443:29:198:183:21
9:43
+0:56
Finish
26.22 mi14:29:243:37:598:198:40
8:30
-1:13

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

8:00 /mi

Average Pace

8:19 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:48

23% of race

Time at Steady Pace

2:05:19

57% of race

Time at Slower Pace

42:52

20% of race

Average Pace: 8:19 /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 mi11:16:2725:028:0325:02
8:03
#14419
10K
6.21 mi11:41:2349:588:0224:56
8:02
#14684
15K
9.32 mi12:06:151:14:508:0224:52
8:00
#14557
20K
12.43 mi12:31:371:40:128:0425:22
8:10
#14582
Half
13.11 mi12:37:081:45:438:045:31
8:05
#14621
25K
15.53 mi12:57:072:05:428:0619:59
8:15
#14594
30K
18.64 mi13:23:322:32:078:1026:25
8:30
#14526
20M
20.00 mi13:35:122:43:478:1111:40
8:35
#14475
21M
21.00 mi13:44:282:53:038:149:16
9:16
#14485
35K
21.75 mi13:50:312:59:068:146:03
8:05
#14418
23M
23.00 mi14:01:353:10:108:1611:04
8:50
#14463
24M
24.00 mi14:09:523:18:278:168:17
8:17
#14380
40K
24.85 mi14:17:233:25:588:177:31
8:47
#14391
25.2M
25.20 mi14:20:443:29:198:183:21
9:43
#14418
Finish
26.22 mi14:29:243:37:598:198:40
8:30
#14428
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi144194283428314430(Top 54%)4338(Top 38%)4338(Top 239%)
10K6.21 mi3.10 mi14684-2654455-1724455-17215006(Top 56%)4679(Top 41%)4679(Top 258%)
15K9.32 mi3.11 mi14557+1274383+724383+7214430(Top 54%)4338(Top 38%)4338(Top 239%)
20K12.43 mi3.11 mi14582-254420-374420-3714720(Top 55%)4541(Top 40%)4541(Top 250%)
Half13.11 mi0.68 mi14621-394446-264446-2615082(Top 57%)4727(Top 41%)4727(Top 260%)
25K15.53 mi2.42 mi14594+274465-194465-1914545(Top 55%)4547(Top 40%)4547(Top 250%)
30K18.64 mi3.11 mi14526+684464+14464+114339(Top 54%)4529(Top 40%)4529(Top 249%)
20M20.00 mi1.36 mi14475+514464446414186(Top 53%)4528(Top 40%)4528(Top 249%)
21M21.00 mi1.00 mi14485-104482-184482-1814823(Top 56%)4942(Top 43%)4942(Top 272%)
35K21.75 mi0.75 mi14418+674456+264456+2612763(Top 48%)3870(Top 34%)3870(Top 213%)
23M23.00 mi1.25 mi14463-454511-554511-5515205(Top 57%)5286(Top 46%)5286(Top 291%)
24M24.00 mi1.00 mi14380+834479+324479+3213190(Top 50%)4228(Top 37%)4228(Top 233%)
40K24.85 mi0.85 mi14391-114512-334512-3315055(Top 57%)5324(Top 47%)5324(Top 293%)
25.2M25.20 mi0.35 mi14418-274538-264538-2616192(Top 61%)5959(Top 52%)5959(Top 328%)
Finish26.22 mi1.02 mi14428-104557-194557-1915463(Top 58%)5510(Top 48%)5510(Top 303%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14430

Females

4338

F45-49

4338

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15006

Females

4679

F45-49

4679

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14430

Females

4338

F45-49

4338

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14720

Females

4541

F45-49

4541

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

15082

Females

4727

F45-49

4727

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

14545

Females

4547

F45-49

4547

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14339

Females

4529

F45-49

4529

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14186

Females

4528

F45-49

4528

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14823

Females

4942

F45-49

4942

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12763

Females

3870

F45-49

3870

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15205

Females

5286

F45-49

5286

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13190

Females

4228

F45-49

4228

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15055

Females

5324

F45-49

5324

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16192

Females

5959

F45-49

5959

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15463

Females

5510

F45-49

5510

Passing Analysis

Category:
Athletes Passed
1592
Passed By
1601
Net Change
-9
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14419
5K → 10K187452-265#14419#14684
10K → 15K267140+127#14684#14557
15K → 20K174199-25#14557#14582
20K → Half1857-39#14582#14621
Half → 25K160133+27#14621#14594
25K → 30K191123+68#14594#14526
30K → 20M11766+51#14526#14475
20M → 21M7888-10#14475#14485
21M → 35K8215+67#14485#14418
35K → 23M68113-45#14418#14463
23M → 24M11229+83#14463#14380
24M → 40K5869-11#14380#14391
40K → 25.2M2148-27#14391#14418
25.2M → Finish5969-10#14418#14428
TOTALS15921601-9
📊

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