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BOSTON MARATHON 2023

Melanie Glass

Bib: 17920•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 35%
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
8:12/mi
25:28
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
50:55
↑ 79↓ 1380.4%
15K· 9.32 mi
8:12/mi
1:16:23
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:41:51
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:47:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:07:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:32:46
↑ 181↓ 1480.2%
20M
8:12/mi
2:43:54
↑ 64↓ 500.2%
21M
8:12/mi
2:52:06
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
2:58:14
↑ 17↓ 861.7%
23M
8:12/mi
3:08:29
↑ 23↓ 630.6%
24M
8:12/mi
3:16:41
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:23:41
↓ 200.3%
25.2M
8:12/mi
3:26:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:34:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:47:26
Pace8:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:47:26
Pace8:12 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3025:288:1225:28
8:12
-
10K
6.21 mi11:40:5750:558:1225:28
8:12
0:00
15K
9.32 mi12:06:251:16:238:1225:28
8:12
0:00
20K
12.43 mi12:31:531:41:518:1225:28
8:12
0:00
Half
13.11 mi12:37:281:47:268:125:35
8:12
0:00
25K
15.53 mi12:57:202:07:188:1219:52
8:12
0:00
30K
18.64 mi13:22:482:32:468:1225:28
8:12
0:00
20M
20.00 mi13:33:562:43:548:1211:08
8:12
0:00
21M
21.00 mi13:42:082:52:068:128:12
8:12
0:00
35K
21.75 mi13:48:162:58:148:126:08
8:12
0:00
23M
23.00 mi13:58:313:08:298:1210:16
8:12
0:00
24M
24.00 mi14:06:433:16:418:128:12
8:12
0:00
40K
24.85 mi14:13:433:23:418:127:00
8:12
0:00
25.2M
25.20 mi14:16:333:26:318:122:50
8:12
0:00
Finish
26.22 mi14:24:543:34:528:128:21
8:12
0:00

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

8:12 /mi

Average Pace

8:12 /mi

Slowest Pace

8:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:52

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:12 /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 mi11:15:3025:288:1225:28
8:12
#15438
10K
6.21 mi11:40:5750:558:1225:28
8:12
#15793
15K
9.32 mi12:06:251:16:238:1225:28
8:12
#15801
20K
12.43 mi12:31:531:41:518:1225:28
8:12
#15540
Half
13.11 mi12:37:281:47:268:125:35
8:12
#15550
25K
15.53 mi12:57:202:07:188:1219:52
8:12
#15323
30K
18.64 mi13:22:482:32:468:1225:28
8:12
#14774
20M
20.00 mi13:33:562:43:548:1211:08
8:12
#14520
21M
21.00 mi13:42:082:52:068:128:12
8:12
#14179
35K
21.75 mi13:48:162:58:148:126:08
8:12
#14129
23M
23.00 mi13:58:313:08:298:1210:16
8:12
#13925
24M
24.00 mi14:06:433:16:418:128:12
8:12
#13836
40K
24.85 mi14:13:433:23:418:127:00
8:12
#13731
25.2M
25.20 mi14:16:333:26:318:122:50
8:12
#13611
Finish
26.22 mi14:24:543:34:528:128:21
8:12
#13596
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154384932493215831(Top 59%)5191(Top 45%)5191(Top 106%)
10K6.21 mi3.10 mi15793-3555155-2235155-22316210(Top 61%)5407(Top 47%)5407(Top 111%)
15K9.32 mi3.11 mi15801-85158-35158-315831(Top 59%)5191(Top 45%)5191(Top 106%)
20K12.43 mi3.11 mi15540+2615017+1415017+14114929(Top 56%)4672(Top 41%)4672(Top 96%)
Half13.11 mi0.68 mi15550-105029-125029-1215787(Top 59%)5192(Top 45%)5192(Top 106%)
25K15.53 mi2.42 mi15323+2274913+1164913+11614211(Top 53%)4350(Top 38%)4350(Top 89%)
30K18.64 mi3.11 mi14774+5494600+3134600+31312309(Top 46%)3370(Top 30%)3370(Top 69%)
20M20.00 mi1.36 mi14520+2544483+1174483+11711692(Top 44%)3121(Top 27%)3121(Top 64%)
21M21.00 mi1.00 mi14179+3414300+1834300+1838568(Top 32%)1756(Top 15%)1756(Top 36%)
35K21.75 mi0.75 mi14129+504284+164284+1613345(Top 50%)4206(Top 37%)4206(Top 86%)
23M23.00 mi1.25 mi13925+2044182+1024182+10211151(Top 42%)3102(Top 27%)3102(Top 64%)
24M24.00 mi1.00 mi13836+894156+264156+2612539(Top 47%)3893(Top 34%)3893(Top 80%)
40K24.85 mi0.85 mi13731+1054100+564100+5611343(Top 43%)3352(Top 29%)3352(Top 69%)
25.2M25.20 mi0.35 mi13611+1204036+644036+647649(Top 29%)1712(Top 15%)1712(Top 35%)
Finish26.22 mi1.02 mi13596+154046-104046-1013446(Top 51%)4450(Top 39%)4450(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15831

Females

5191

F18-39

5191

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

16210

Females

5407

F18-39

5407

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15831

Females

5191

F18-39

5191

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14929

Females

4672

F18-39

4672

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15787

Females

5192

F18-39

5192

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14211

Females

4350

F18-39

4350

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12309

Females

3370

F18-39

3370

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11692

Females

3121

F18-39

3121

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

8568

Females

1756

F18-39

1756

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

13345

Females

4206

F18-39

4206

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11151

Females

3102

F18-39

3102

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12539

Females

3893

F18-39

3893

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11343

Females

3352

F18-39

3352

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7649

Females

1712

F18-39

1712

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13446

Females

4450

F18-39

4450

Passing Analysis

Category:
Athletes Passed
2849
Passed By
1007
Net Change
+1842
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15438
5K → 10K166521-355#15438#15793
10K → 15K190198-8#15793#15801
15K → 20K31958+261#15801#15540
20K → Half2434-10#15540#15550
Half → 25K26033+227#15550#15323
25K → 30K56011+549#15323#14774
30K → 20M2595+254#14774#14520
20M → 21M3410+341#14520#14179
21M → 35K7626+50#14179#14129
35K → 23M21713+204#14129#13925
23M → 24M11324+89#13925#13836
24M → 40K12318+105#13836#13731
40K → 25.2M1233+120#13731#13611
25.2M → Finish7863+15#13611#13596
TOTALS28491007+1842
📊

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