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BOSTON MARATHON 2023

Mary Nuzzela

Bib: 3890•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Female)
#0 / 11423
Top 1%
Division (F18-39)
#0 / 4884
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:09
Rank: #2219
Start → 5K
20:09 | 6:29/mi
10K· 6.21 mi
40:10
Rank: #2309 (-90)
5K → 10K
20:01 | 6:27/mi
15K· 9.32 mi
1:00:21
Rank: #2416 (-107)
10K → 15K
20:11 | 6:30/mi
20K· 12.43 mi
1:20:47
Rank: #2457 (-41)
15K → 20K
20:26 | 6:35/mi
Half· 13.11 mi
1:25:15
Rank: #2477 (-20)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:41:31
Rank: #2602 (-125)
Half → 25K
16:16 | 6:43/mi
30K· 18.64 mi
2:03:02
Rank: #2751 (-149)
25K → 30K
21:31 | 6:56/mi
20M
2:12:39
Rank: #2831 (-80)
30K → 20M
9:37 | 7:05/mi
21M
2:20:17
Rank: #2956 (-125)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:25:21
Rank: #2977 (-21)
21M → 35K
5:04 | 6:46/mi
23M
2:34:15
Rank: #3042 (-65)
35K → 23M
8:54 | 7:06/mi
24M
2:41:02
Rank: #3044 (-2)
23M → 24M
6:47 | 6:47/mi
40K· 24.85 mi
2:47:00
Rank: #3038 (+6)
24M → 40K
5:58 | 6:59/mi
25.2M
2:49:39
Rank: #3064 (-26)
40K → 25.2M
2:39 | 7:41/mi
Finish· 26.22 mi
2:56:41
Rank: #3112 (-48)
25.2M → Finish
7:02 | 6:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:15
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:31:26
Pace6:58 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1820:096:2920:09
6:29
-
10K
6.21 mi10:41:1940:106:2820:01
6:27
-0:02
15K
9.32 mi11:01:301:00:216:2820:11
6:30
+0:03
20K
12.43 mi11:21:561:20:476:3020:26
6:35
+0:05
Half
13.11 mi11:26:241:25:156:304:28
6:33
-0:02
25K
15.53 mi11:42:401:41:316:3216:16
6:43
+0:10
30K
18.64 mi12:04:112:03:026:3621:31
6:56
+0:13
20M
20.00 mi12:13:482:12:396:389:37
7:05
+0:09
21M
21.00 mi12:21:262:20:176:417:38
7:38
+0:33
35K
21.75 mi12:26:302:25:216:415:04
6:46
-0:52
23M
23.00 mi12:35:242:34:156:428:54
7:06
+0:20
24M
24.00 mi12:42:112:41:026:436:47
6:47
-0:19
40K
24.85 mi12:48:092:47:006:435:58
6:59
+0:12
25.2M
25.20 mi12:50:482:49:396:442:39
7:41
+0:42
Finish
26.22 mi12:57:502:56:416:457:02
6:54
-0:47

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

6:27 /mi

Average Pace

6:45 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:30

89% of race

Time at Steady Pace

8:54

5% of race

Time at Slower Pace

10:17

6% of race

Average Pace: 6:44 /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 mi10:21:1820:096:2920:09
6:29
#2219
10K
6.21 mi10:41:1940:106:2820:01
6:27
#2309
15K
9.32 mi11:01:301:00:216:2820:11
6:30
#2416
20K
12.43 mi11:21:561:20:476:3020:26
6:35
#2457
Half
13.11 mi11:26:241:25:156:304:28
6:33
#2477
25K
15.53 mi11:42:401:41:316:3216:16
6:43
#2602
30K
18.64 mi12:04:112:03:026:3621:31
6:56
#2751
20M
20.00 mi12:13:482:12:396:389:37
7:05
#2831
21M
21.00 mi12:21:262:20:176:417:38
7:38
#2956
35K
21.75 mi12:26:302:25:216:415:04
6:46
#2977
23M
23.00 mi12:35:242:34:156:428:54
7:06
#3042
24M
24.00 mi12:42:112:41:026:436:47
6:47
#3044
40K
24.85 mi12:48:092:47:006:435:58
6:59
#3038
25.2M
25.20 mi12:50:482:49:396:442:39
7:41
#3064
Finish
26.22 mi12:57:502:56:416:457:02
6:54
#3112
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi22191001002628(Top 10%)113(Top 1.0%)113(Top 2%)
10K6.21 mi3.10 mi2309-90103-3103-32468(Top 9%)106(Top 0.9%)106(Top 2%)
15K9.32 mi3.11 mi2416-107101+2101+22628(Top 10%)113(Top 1.0%)113(Top 2%)
20K12.43 mi3.11 mi2457-41102-1102-12717(Top 10%)118(Top 1%)118(Top 2%)
Half13.11 mi0.68 mi2477-201021023146(Top 12%)142(Top 1%)142(Top 3%)
25K15.53 mi2.42 mi2602-125111-9111-93447(Top 13%)178(Top 2%)178(Top 4%)
30K18.64 mi3.11 mi2751-149120-9120-93852(Top 14%)239(Top 2%)239(Top 5%)
20M20.00 mi1.36 mi2831-80123-3123-34499(Top 17%)358(Top 3%)358(Top 7%)
21M21.00 mi1.00 mi2956-125137-14137-145293(Top 20%)602(Top 5%)602(Top 12%)
35K21.75 mi0.75 mi2977-21140-3140-34057(Top 15%)325(Top 3%)325(Top 7%)
23M23.00 mi1.25 mi3042-65150-10150-104362(Top 16%)379(Top 3%)379(Top 8%)
24M24.00 mi1.00 mi3044-2152-2152-23588(Top 13%)289(Top 3%)289(Top 6%)
40K24.85 mi0.85 mi3038+6157-5157-53756(Top 14%)360(Top 3%)360(Top 7%)
25.2M25.20 mi0.35 mi3064-26159-2159-24839(Top 18%)646(Top 6%)646(Top 13%)
Finish26.22 mi1.02 mi3112-48164-5164-54657(Top 17%)609(Top 5%)609(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2628

Females

113

F18-39

113

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2468

Females

106

F18-39

106

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2628

Females

113

F18-39

113

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2717

Females

118

F18-39

118

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3146

Females

142

F18-39

142

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3447

Females

178

F18-39

178

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3852

Females

239

F18-39

239

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4499

Females

358

F18-39

358

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5293

Females

602

F18-39

602

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4057

Females

325

F18-39

325

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4362

Females

379

F18-39

379

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3588

Females

289

F18-39

289

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3756

Females

360

F18-39

360

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

4839

Females

646

F18-39

646

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4657

Females

609

F18-39

609

Passing Analysis

Category:
Athletes Passed
458
Passed By
1351
Net Change
-893
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2219
5K → 10K79169-90#2219#2309
10K → 15K42149-107#2309#2416
15K → 20K4990-41#2416#2457
20K → Half424-20#2457#2477
Half → 25K20145-125#2477#2602
25K → 30K37186-149#2602#2751
30K → 20M1999-80#2751#2831
20M → 21M9134-125#2831#2956
21M → 35K2950-21#2956#2977
35K → 23M3499-65#2977#3042
23M → 24M3941-2#3042#3044
24M → 40K4943+6#3044#3038
40K → 25.2M935-26#3038#3064
25.2M → Finish3987-48#3064#3112
TOTALS4581351-893
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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