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BOSTON MARATHON 2023

Maria Guadalupe Nieto

MI

Bib: 20444 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 43%
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:58/mi
24:45
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:17/mi
50:29
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:38/mi
1:14:13
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:13/mi
1:39:45
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:17/mi
1:45:24
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:33/mi
2:06:07
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:16/mi
2:34:55
↑ 181↓ 1480.2%
138 ft elev
20M
9:26/mi
2:47:44
↑ 64↓ 500.2%
148 ft elev
21M
9:46/mi
2:57:30
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:56/mi
3:04:11
↑ 17↓ 861.7%
156 ft elev
23M
9:48/mi
3:16:27
↑ 23↓ 630.6%
116 ft elev
24M
9:36/mi
3:26:03
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:45/mi
3:34:23
↓ 200.3%
20 ft elev
25.2M
12:11/mi
3:38:35
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:22/mi
3:48:08
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:24
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time2:02:44
Pace9:22 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2224:457:5824:45
7:58
-
10K
6.21 mi11:42:0650:298:0725:44
8:17
+0:19
15K
9.32 mi12:05:501:14:137:5823:44
7:38
-0:39
20K
12.43 mi12:31:221:39:458:0225:32
8:13
+0:35
Half
13.11 mi12:37:011:45:248:025:39
8:17
+0:04
25K
15.53 mi12:57:442:06:078:0720:43
8:33
+0:16
30K
18.64 mi13:26:322:34:558:1928:48
9:16
+0:43
20M
20.00 mi13:39:212:47:448:2312:49
9:26
+0:10
21M
21.00 mi13:49:072:57:308:279:46
9:46
+0:20
35K
21.75 mi13:55:483:04:118:286:41
8:56
-0:50
23M
23.00 mi14:08:043:16:278:3212:16
9:48
+0:52
24M
24.00 mi14:17:403:26:038:359:36
9:36
-0:12
40K
24.85 mi14:26:003:34:238:388:20
9:45
+0:09
25.2M
25.20 mi14:30:123:38:358:404:12
12:11
+2:26
Finish
26.22 mi14:39:453:48:088:429:33
9:22
-2:49

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

7:38 /mi

Average Pace

8:42 /mi

Slowest Pace

12:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:07

55% of race

Time at Steady Pace

1:37:49

43% of race

Time at Slower Pace

4:12

2% of race

Average Pace: 8:42 /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 mi11:16:2224:457:5824:45
7:58
#13785
10K
6.21 mi11:42:0650:298:0725:44
8:17
#15288
15K
9.32 mi12:05:501:14:137:5823:44
7:38
#14076
20K
12.43 mi12:31:221:39:458:0225:32
8:13
#14299
Half
13.11 mi12:37:011:45:248:025:39
8:17
#14426
25K
15.53 mi12:57:442:06:078:0720:43
8:33
#14775
30K
18.64 mi13:26:322:34:558:1928:48
9:16
#15556
20M
20.00 mi13:39:212:47:448:2312:49
9:26
#15793
21M
21.00 mi13:49:072:57:308:279:46
9:46
#15880
35K
21.75 mi13:55:483:04:118:286:41
8:56
#15935
23M
23.00 mi14:08:043:16:278:3212:16
9:48
#16201
24M
24.00 mi14:17:403:26:038:359:36
9:36
#16431
40K
24.85 mi14:26:003:34:238:388:20
9:45
#16557
25.2M
25.20 mi14:30:123:38:358:404:12
12:11
#16741
Finish
26.22 mi14:39:453:48:088:429:33
9:22
#16889
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi137853897389711357(Top 43%)2548(Top 22%)2548(Top 140%)
10K6.21 mi3.10 mi15288-15034829-9324829-93216820(Top 63%)5759(Top 50%)5759(Top 317%)
15K9.32 mi3.11 mi14076+12124109+7204109+72011357(Top 43%)2548(Top 22%)2548(Top 140%)
20K12.43 mi3.11 mi14299-2234255-1464255-14615099(Top 57%)4776(Top 42%)4776(Top 263%)
Half13.11 mi0.68 mi14426-1274331-764331-7616434(Top 62%)5566(Top 49%)5566(Top 306%)
25K15.53 mi2.42 mi14775-3494571-2404571-24016476(Top 62%)5709(Top 50%)5709(Top 314%)
30K18.64 mi3.11 mi15556-7815102-5315102-53118484(Top 69%)6908(Top 60%)6908(Top 380%)
20M20.00 mi1.36 mi15793-2375268-1665268-16618595(Top 70%)7074(Top 62%)7074(Top 389%)
21M21.00 mi1.00 mi15880-875344-765344-7617132(Top 64%)6267(Top 55%)6267(Top 345%)
35K21.75 mi0.75 mi15935-555393-495393-4917638(Top 66%)6624(Top 58%)6624(Top 365%)
23M23.00 mi1.25 mi16201-2665559-1665559-16619427(Top 73%)7641(Top 67%)7641(Top 421%)
24M24.00 mi1.00 mi16431-2305713-1545713-15419573(Top 74%)7743(Top 68%)7743(Top 426%)
40K24.85 mi0.85 mi16557-1265800-875800-8719187(Top 72%)7586(Top 66%)7586(Top 418%)
25.2M25.20 mi0.35 mi16741-1845918-1185918-11822808(Top 86%)9546(Top 84%)9546(Top 525%)
Finish26.22 mi1.02 mi16889-1486014-966014-9619660(Top 74%)7806(Top 68%)7806(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11357

Females

2548

F45-49

2548

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16820

Females

5759

F45-49

5759

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11357

Females

2548

F45-49

2548

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

15099

Females

4776

F45-49

4776

20K→Half

12.4 - 13.1 mi

Top 62%
×2story building
+19ft-37ft

Overall

16434

Females

5566

F45-49

5566

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16476

Females

5709

F45-49

5709

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

18484

Females

6908

F45-49

6908

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18595

Females

7074

F45-49

7074

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

17132

Females

6267

F45-49

6267

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

17638

Females

6624

F45-49

6624

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19427

Females

7641

F45-49

7641

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19573

Females

7743

F45-49

7743

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19187

Females

7586

F45-49

7586

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

22808

Females

9546

F45-49

9546

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19660

Females

7806

F45-49

7806

Passing Analysis

Category:
Athletes Passed
1697
Passed By
4801
Net Change
-3104
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13785
5K → 10K241527-1503#13785#15288
10K → 15K12164+1212#15288#14076
15K → 20K115338-223#14076#14299
20K → Half5132-127#14299#14426
Half → 25K64413-349#14426#14775
25K → 30K35816-781#14775#15556
30K → 20M34271-237#15556#15793
20M → 21M61148-87#15793#15880
21M → 35K3994-55#15880#15935
35K → 23M20286-266#15935#16201
23M → 24M21251-230#16201#16431
24M → 40K32158-126#16431#16557
40K → 25.2M4188-184#16557#16741
25.2M → Finish27175-148#16741#16889
TOTALS16974801-3104
📊

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