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BOSTON MARATHON 2023

Natalie Melas-Kyriazi

Bib: 29572•F

MA

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

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
9:38/mi
29:55
↑ 97↓ 3451.5%
10K· 6.21 mi
9:19/mi
58:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:26:46
↑ 67↓ 78
20K· 12.43 mi
9:03/mi
1:54:53
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
2:01:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:08/mi
2:23:12
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:52:10
↑ 181↓ 1480.2%
20M
9:13/mi
3:04:42
↑ 64↓ 500.2%
21M
9:21/mi
3:14:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:47/mi
3:20:37
↑ 17↓ 861.7%
23M
9:06/mi
3:32:01
↑ 23↓ 630.6%
24M
9:04/mi
3:41:05
↓ 821.3%
40K· 24.85 mi
9:09/mi
3:48:54
↓ 200.3%
25.2M
9:54/mi
3:52:19
↑ 13↓ 160.2%
Finish· 26.22 mi
8:18/mi
4:00:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:01:04
Pace9:14 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:59:42
Pace9:08 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2929:559:3829:55
9:38
-
10K
6.21 mi12:21:2758:539:2928:58
9:19
-0:19
15K
9.32 mi12:49:201:26:469:1927:53
8:58
-0:21
20K
12.43 mi13:17:271:54:539:1528:07
9:03
+0:05
Half
13.11 mi13:23:382:01:049:146:11
9:04
+0:01
25K
15.53 mi13:45:462:23:129:1322:08
9:08
+0:04
30K
18.64 mi14:14:442:52:109:1428:58
9:19
+0:11
20M
20.00 mi14:27:163:04:429:1412:32
9:13
-0:06
21M
21.00 mi14:36:373:14:039:149:21
9:21
+0:08
35K
21.75 mi14:43:113:20:379:136:34
8:47
-0:34
23M
23.00 mi14:54:353:32:019:1311:24
9:06
+0:19
24M
24.00 mi15:03:393:41:059:139:04
9:04
-0:02
40K
24.85 mi15:11:283:48:549:137:49
9:09
+0:05
25.2M
25.20 mi15:14:533:52:199:133:25
9:54
+0:45
Finish
26.22 mi15:23:204:00:469:118:27
8:18
-1:36

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

8:18 /mi

Average Pace

9:11 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:40

41% of race

Time at Steady Pace

2:19:41

58% of race

Time at Slower Pace

3:25

1% of race

Average Pace: 9:11 /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 mi11:52:2929:559:3829:55
9:38
#22460
10K
6.21 mi12:21:2758:539:2928:58
9:19
#22269
15K
9.32 mi12:49:201:26:469:1927:53
8:58
#21724
20K
12.43 mi13:17:271:54:539:1528:07
9:03
#21334
Half
13.11 mi13:23:382:01:049:146:11
9:04
#21295
25K
15.53 mi13:45:462:23:129:1322:08
9:08
#21004
30K
18.64 mi14:14:442:52:109:1428:58
9:19
#20592
20M
20.00 mi14:27:163:04:429:1412:32
9:13
#20384
21M
21.00 mi14:36:373:14:039:149:21
9:21
#20122
35K
21.75 mi14:43:113:20:379:136:34
8:47
#20000
23M
23.00 mi14:54:353:32:019:1311:24
9:06
#19801
24M
24.00 mi15:03:393:41:059:139:04
9:04
#19711
40K
24.85 mi15:11:283:48:549:137:49
9:09
#19614
25.2M
25.20 mi15:14:533:52:199:133:25
9:54
#19579
Finish
26.22 mi15:23:204:00:469:118:27
8:18
#19440
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi224609111911120393(Top 77%)7895(Top 69%)7895(Top 162%)
10K6.21 mi3.10 mi22269+1918983+1288983+12822008(Top 83%)8820(Top 77%)8820(Top 181%)
15K9.32 mi3.11 mi21724+5458687+2968687+29620393(Top 77%)7895(Top 69%)7895(Top 162%)
20K12.43 mi3.11 mi21334+3908455+2328455+23219935(Top 75%)7639(Top 67%)7639(Top 156%)
Half13.11 mi0.68 mi21295+398429+268429+2620701(Top 78%)8063(Top 71%)8063(Top 165%)
25K15.53 mi2.42 mi21004+2918266+1638266+16319552(Top 73%)7454(Top 65%)7454(Top 153%)
30K18.64 mi3.11 mi20592+4128058+2088058+20818731(Top 70%)7048(Top 62%)7048(Top 144%)
20M20.00 mi1.36 mi20384+2087956+1027956+10217687(Top 66%)6576(Top 58%)6576(Top 135%)
21M21.00 mi1.00 mi20122+2627820+1367820+13615299(Top 57%)5236(Top 46%)5236(Top 107%)
35K21.75 mi0.75 mi20000+1227751+697751+6916882(Top 63%)6226(Top 55%)6226(Top 127%)
23M23.00 mi1.25 mi19801+1997647+1047647+10416597(Top 62%)6086(Top 53%)6086(Top 125%)
24M24.00 mi1.00 mi19711+907598+497598+4917560(Top 66%)6661(Top 58%)6661(Top 136%)
40K24.85 mi0.85 mi19614+977554+447554+4416870(Top 63%)6335(Top 55%)6335(Top 130%)
25.2M25.20 mi0.35 mi19579+357538+167538+1617094(Top 64%)6486(Top 57%)6486(Top 133%)
Finish26.22 mi1.02 mi19440+1397465+737465+7314109(Top 53%)4813(Top 42%)4813(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20393

Females

7895

F18-39

7895

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22008

Females

8820

F18-39

8820

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20393

Females

7895

F18-39

7895

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

19935

Females

7639

F18-39

7639

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20701

Females

8063

F18-39

8063

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

19552

Females

7454

F18-39

7454

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18731

Females

7048

F18-39

7048

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17687

Females

6576

F18-39

6576

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

15299

Females

5236

F18-39

5236

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

16882

Females

6226

F18-39

6226

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

16597

Females

6086

F18-39

6086

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17560

Females

6661

F18-39

6661

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16870

Females

6335

F18-39

6335

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17094

Females

6486

F18-39

6486

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14109

Females

4813

F18-39

4813

Passing Analysis

Category:
Athletes Passed
3299
Passed By
279
Net Change
+3020
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22460
5K → 10K353162+191#22460#22269
10K → 15K55914+545#22269#21724
15K → 20K40919+390#21724#21334
20K → Half5112+39#21334#21295
Half → 25K30211+291#21295#21004
25K → 30K42210+412#21004#20592
30K → 20M2135+208#20592#20384
20M → 21M2631+262#20384#20122
21M → 35K1264+122#20122#20000
35K → 23M2056+199#20000#19801
23M → 24M10010+90#19801#19711
24M → 40K10710+97#19711#19614
40K → 25.2M4510+35#19614#19579
25.2M → Finish1445+139#19579#19440
TOTALS3299279+3020
📊

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