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BOSTON MARATHON 2023

Melissa Uzzo

Bib: 27686•F

VA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:15
Rank: #25190
Start → 5K
33:15 | 10:42/mi
10K· 6.21 mi
1:06:23
Rank: #25064 (+126)
5K → 10K
33:08 | 10:40/mi
15K· 9.32 mi
1:39:13
Rank: #24888 (+176)
10K → 15K
32:50 | 10:34/mi
20K· 12.43 mi
2:12:16
Rank: #24668 (+220)
15K → 20K
33:03 | 10:38/mi
Half· 13.11 mi
2:19:31
Rank: #24653 (+15)
20K → Half
7:15 | 10:38/mi
25K· 15.53 mi
2:45:45
Rank: #24496 (+157)
Half → 25K
26:14 | 10:49/mi
30K· 18.64 mi
3:19:23
Rank: #24156 (+340)
25K → 30K
33:38 | 10:50/mi
20M
3:34:20
Rank: #24057 (+99)
30K → 20M
14:57 | 11:00/mi
21M
3:46:12
Rank: #23992 (+65)
20M → 21M
11:52 | 11:52/mi
35K· 21.75 mi
3:54:12
Rank: #23960 (+32)
21M → 35K
8:00 | 10:42/mi
23M
4:08:22
Rank: #23913 (+47)
35K → 23M
14:10 | 11:19/mi
24M
4:19:04
Rank: #23848 (+65)
23M → 24M
10:42 | 10:42/mi
40K· 24.85 mi
4:28:36
Rank: #23813 (+35)
24M → 40K
9:32 | 11:09/mi
25.2M
4:32:55
Rank: #23814 (-1)
40K → 25.2M
4:19 | 12:31/mi
Finish· 26.22 mi
4:43:11
Rank: #23761 (+53)
25.2M → Finish
10:16 | 10:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:31
Pace10:39 /mi
2nd Half
Distance13.11 mi
Time2:23:40
Pace10:58 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2933:1510:4233:15
10:42
-
10K
6.21 mi12:27:371:06:2310:4133:08
10:40
-0:02
15K
9.32 mi13:00:271:39:1310:3932:50
10:34
-0:06
20K
12.43 mi13:33:302:12:1610:3933:03
10:38
+0:04
Half
13.11 mi13:40:452:19:3110:397:15
10:38
0:00
25K
15.53 mi14:06:592:45:4510:4026:14
10:49
+0:11
30K
18.64 mi14:40:373:19:2310:4233:38
10:50
+0:01
20M
20.00 mi14:55:343:34:2010:4314:57
11:00
+0:10
21M
21.00 mi15:07:263:46:1210:4611:52
11:52
+0:52
35K
21.75 mi15:15:263:54:1210:468:00
10:42
-1:10
23M
23.00 mi15:29:364:08:2210:4814:10
11:19
+0:37
24M
24.00 mi15:40:184:19:0410:4810:42
10:42
-0:37
40K
24.85 mi15:49:504:28:3610:489:32
11:09
+0:27
25.2M
25.20 mi15:54:094:32:5510:504:19
12:31
+1:22
Finish
26.22 mi16:04:254:43:1110:4910:16
10:04
-2:27

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

10:04 /mi

Average Pace

10:49 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

10:16

4% of race

Time at Steady Pace

3:38:05

77% of race

Time at Slower Pace

54:50

19% of race

Average Pace: 10:48 /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 mi11:54:2933:1510:4233:15
10:42
#25190
10K
6.21 mi12:27:371:06:2310:4133:08
10:40
#25064
15K
9.32 mi13:00:271:39:1310:3932:50
10:34
#24888
20K
12.43 mi13:33:302:12:1610:3933:03
10:38
#24668
Half
13.11 mi13:40:452:19:3110:397:15
10:38
#24653
25K
15.53 mi14:06:592:45:4510:4026:14
10:49
#24496
30K
18.64 mi14:40:373:19:2310:4233:38
10:50
#24156
20M
20.00 mi14:55:343:34:2010:4314:57
11:00
#24057
21M
21.00 mi15:07:263:46:1210:4611:52
11:52
#23992
35K
21.75 mi15:15:263:54:1210:468:00
10:42
#23960
23M
23.00 mi15:29:364:08:2210:4814:10
11:19
#23913
24M
24.00 mi15:40:184:19:0410:4810:42
10:42
#23848
40K
24.85 mi15:49:504:28:3610:489:32
11:09
#23813
25.2M
25.20 mi15:54:094:32:5510:504:19
12:31
#23814
Finish
26.22 mi16:04:254:43:1110:4910:16
10:04
#23761
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25190105391053924575(Top 92%)10219(Top 89%)10219(Top 209%)
10K6.21 mi3.10 mi25064+12610470+6910470+6924959(Top 94%)10417(Top 91%)10417(Top 213%)
15K9.32 mi3.11 mi24888+17610378+9210378+9224575(Top 92%)10219(Top 89%)10219(Top 209%)
20K12.43 mi3.11 mi24668+22010271+10710271+10724080(Top 90%)9955(Top 87%)9955(Top 204%)
Half13.11 mi0.68 mi24653+1510270+110270+124425(Top 92%)10163(Top 89%)10163(Top 208%)
25K15.53 mi2.42 mi24496+15710181+8910181+8923706(Top 89%)9793(Top 86%)9793(Top 201%)
30K18.64 mi3.11 mi24156+34010010+17110010+17122840(Top 86%)9374(Top 82%)9374(Top 192%)
20M20.00 mi1.36 mi24057+999965+459965+4522722(Top 85%)9377(Top 82%)9377(Top 192%)
21M21.00 mi1.00 mi23992+659939+269939+2622536(Top 85%)9303(Top 81%)9303(Top 190%)
35K21.75 mi0.75 mi23960+329926+139926+1322757(Top 85%)9462(Top 83%)9462(Top 194%)
23M23.00 mi1.25 mi23913+479904+229904+2222932(Top 86%)9553(Top 84%)9553(Top 196%)
24M24.00 mi1.00 mi23848+659877+279877+2722467(Top 84%)9350(Top 82%)9350(Top 191%)
40K24.85 mi0.85 mi23813+359862+159862+1522658(Top 85%)9483(Top 83%)9483(Top 194%)
25.2M25.20 mi0.35 mi23814-19867-59867-523332(Top 88%)9845(Top 86%)9845(Top 202%)
Finish26.22 mi1.02 mi23761+539847+209847+2021982(Top 83%)9111(Top 80%)9111(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

24575

Females

10219

F18-39

10219

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

24959

Females

10417

F18-39

10417

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

24575

Females

10219

F18-39

10219

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

24080

Females

9955

F18-39

9955

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

24425

Females

10163

F18-39

10163

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

23706

Females

9793

F18-39

9793

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

22840

Females

9374

F18-39

9374

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

22722

Females

9377

F18-39

9377

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

22536

Females

9303

F18-39

9303

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

22757

Females

9462

F18-39

9462

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22932

Females

9553

F18-39

9553

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

22467

Females

9350

F18-39

9350

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22658

Females

9483

F18-39

9483

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23332

Females

9845

F18-39

9845

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

21982

Females

9111

F18-39

9111

Passing Analysis

Category:
Athletes Passed
1733
Passed By
304
Net Change
+1429
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25190
5K → 10K243117+126#25190#25064
10K → 15K21640+176#25064#24888
15K → 20K23818+220#24888#24668
20K → Half2813+15#24668#24653
Half → 25K17215+157#24653#24496
25K → 30K35616+340#24496#24156
30K → 20M1078+99#24156#24057
20M → 21M8217+65#24057#23992
21M → 35K4614+32#23992#23960
35K → 23M6114+47#23960#23913
23M → 24M705+65#23913#23848
24M → 40K4510+35#23848#23813
40K → 25.2M1314-1#23813#23814
25.2M → Finish563+53#23814#23761
TOTALS1733304+1429
📊

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