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BOSTON MARATHON 2023

Brooke Nowak

Bib: 15309•F

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 38%
Masters (Masters Women)
#0 / 6539
Top 25%
Division (F40-44)
#0 / 1878
Top 45%
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
7:56/mi
24:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
48:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:12:21
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:36:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:42:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:11/mi
2:02:12
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:28:35
↑ 181↓ 1480.2%
20M
9:01/mi
2:40:50
↑ 64↓ 500.2%
21M
9:36/mi
2:50:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
2:56:47
↑ 17↓ 861.7%
23M
9:25/mi
3:08:34
↑ 23↓ 630.6%
24M
8:34/mi
3:17:08
↓ 821.3%
40K· 24.85 mi
9:16/mi
3:25:03
↓ 200.3%
25.2M
9:57/mi
3:28:29
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:36:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:21
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:54:27
Pace8:44 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5124:397:5624:39
7:56
-
10K
6.21 mi11:18:3748:257:4823:46
7:39
-0:17
15K
9.32 mi11:42:331:12:217:4623:56
7:42
+0:03
20K
12.43 mi12:07:091:36:577:4824:36
7:55
+0:13
Half
13.11 mi12:12:331:42:217:485:24
7:55
0:00
25K
15.53 mi12:32:242:02:127:5219:51
8:11
+0:16
30K
18.64 mi12:58:472:28:357:5826:23
8:30
+0:19
20M
20.00 mi13:11:022:40:508:0212:15
9:01
+0:31
21M
21.00 mi13:20:382:50:268:079:36
9:36
+0:35
35K
21.75 mi13:26:592:56:478:086:21
8:29
-1:07
23M
23.00 mi13:38:463:08:348:1211:47
9:25
+0:56
24M
24.00 mi13:47:203:17:088:138:34
8:34
-0:51
40K
24.85 mi13:55:153:25:038:157:55
9:16
+0:42
25.2M
25.20 mi13:58:413:28:298:163:26
9:57
+0:41
Finish
26.22 mi14:07:003:36:488:168:19
8:10
-1:47

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

7:39 /mi

Average Pace

8:16 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:21

47% of race

Time at Steady Pace

1:09:28

32% of race

Time at Slower Pace

44:59

21% of race

Average Pace: 8:16 /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 mi10:54:5124:397:5624:39
7:56
#13553
10K
6.21 mi11:18:3748:257:4823:46
7:39
#12628
15K
9.32 mi11:42:331:12:217:4623:56
7:42
#12344
20K
12.43 mi12:07:091:36:577:4824:36
7:55
#12419
Half
13.11 mi12:12:331:42:217:485:24
7:55
#12479
25K
15.53 mi12:32:242:02:127:5219:51
8:11
#12757
30K
18.64 mi12:58:472:28:357:5826:23
8:30
#13069
20M
20.00 mi13:11:022:40:508:0212:15
9:01
#13358
21M
21.00 mi13:20:382:50:268:079:36
9:36
#13575
35K
21.75 mi13:26:592:56:478:086:21
8:29
#13641
23M
23.00 mi13:38:463:08:348:1211:47
9:25
#13955
24M
24.00 mi13:47:203:17:088:138:34
8:34
#13973
40K
24.85 mi13:55:153:25:038:157:55
9:16
#14129
25.2M
25.20 mi13:58:413:28:298:163:26
9:57
#14193
Finish
26.22 mi14:07:003:36:488:168:19
8:10
#14131
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi135533755375511892(Top 45%)2849(Top 25%)2849(Top 152%)
10K6.21 mi3.10 mi12628+9253225+5303225+53011810(Top 44%)2769(Top 24%)2769(Top 147%)
15K9.32 mi3.11 mi12344+2843092+1333092+13311892(Top 45%)2849(Top 25%)2849(Top 152%)
20K12.43 mi3.11 mi12419-753161-693161-6912786(Top 48%)3435(Top 30%)3435(Top 183%)
Half13.11 mi0.68 mi12479-603189-283189-2813774(Top 52%)3961(Top 35%)3961(Top 211%)
25K15.53 mi2.42 mi12757-2783372-1833372-18314153(Top 53%)4315(Top 38%)4315(Top 230%)
30K18.64 mi3.11 mi13069-3123594-2223594-22214268(Top 54%)4492(Top 39%)4492(Top 239%)
20M20.00 mi1.36 mi13358-2893773-1793773-17916623(Top 62%)5925(Top 52%)5925(Top 315%)
21M21.00 mi1.00 mi13575-2173922-1493922-14916423(Top 62%)5862(Top 51%)5862(Top 312%)
35K21.75 mi0.75 mi13641-663968-463968-4615246(Top 57%)5250(Top 46%)5250(Top 280%)
23M23.00 mi1.25 mi13955-3144201-2334201-23317975(Top 68%)6847(Top 60%)6847(Top 365%)
24M24.00 mi1.00 mi13973-184238-374238-3714885(Top 56%)5162(Top 45%)5162(Top 275%)
40K24.85 mi0.85 mi14129-1564348-1104348-11017344(Top 65%)6587(Top 58%)6587(Top 351%)
25.2M25.20 mi0.35 mi14193-644402-544402-5417194(Top 65%)6520(Top 57%)6520(Top 347%)
Finish26.22 mi1.02 mi14131+624379+234379+2313204(Top 50%)4313(Top 38%)4313(Top 230%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11892

Females

2849

F40-44

2849

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11810

Females

2769

F40-44

2769

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11892

Females

2849

F40-44

2849

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12786

Females

3435

F40-44

3435

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13774

Females

3961

F40-44

3961

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14153

Females

4315

F40-44

4315

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14268

Females

4492

F40-44

4492

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16623

Females

5925

F40-44

5925

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16423

Females

5862

F40-44

5862

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

15246

Females

5250

F40-44

5250

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

17975

Females

6847

F40-44

6847

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14885

Females

5162

F40-44

5162

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17344

Females

6587

F40-44

6587

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17194

Females

6520

F40-44

6520

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13204

Females

4313

F40-44

4313

Passing Analysis

Category:
Athletes Passed
2029
Passed By
2607
Net Change
-578
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13553
5K → 10K99570+925#13553#12628
10K → 15K36884+284#12628#12344
15K → 20K145220-75#12344#12419
20K → Half1878-60#12419#12479
Half → 25K63341-278#12479#12757
25K → 30K106418-312#12757#13069
30K → 20M34323-289#13069#13358
20M → 21M35252-217#13358#13575
21M → 35K37103-66#13575#13641
35K → 23M26340-314#13641#13955
23M → 24M5775-18#13955#13973
24M → 40K37193-156#13973#14129
40K → 25.2M1074-64#14129#14193
25.2M → Finish9836+62#14193#14131
TOTALS20292607-578
📊

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