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BOSTON MARATHON 2023

Bonnie Negrich

Bib: 29365•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
11:04/mi
34:22
↑ 97↓ 3451.5%
10K· 6.21 mi
10:14/mi
1:06:09
↑ 79↓ 1380.4%
15K· 9.32 mi
10:14/mi
1:37:57
↑ 67↓ 78
20K· 12.43 mi
10:13/mi
2:09:41
↑ 106↓ 860.1%
Half· 13.11 mi
9:58/mi
2:16:29
↑ 19↓ 370.5%
25K· 15.53 mi
10:18/mi
2:41:28
↑ 66↓ 880.2%
30K· 18.64 mi
10:37/mi
3:14:27
↑ 181↓ 1480.2%
20M
10:25/mi
3:28:37
↑ 64↓ 500.2%
21M
10:30/mi
3:39:07
↑ 106↓ 241.6%
35K· 21.75 mi
10:14/mi
3:46:46
↑ 17↓ 861.7%
23M
10:21/mi
3:59:44
↑ 23↓ 630.6%
24M
9:59/mi
4:09:43
↓ 821.3%
40K· 24.85 mi
10:07/mi
4:18:22
↓ 200.3%
25.2M
11:21/mi
4:22:17
↑ 13↓ 160.2%
Finish· 26.22 mi
10:13/mi
4:32:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:16:29
Pace10:25 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:16:13
Pace10:23 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5434:2211:0434:22
11:04
-
10K
6.21 mi12:27:411:06:0910:3931:47
10:14
-0:50
15K
9.32 mi12:59:291:37:5710:3131:48
10:14
0:00
20K
12.43 mi13:31:132:09:4110:2631:44
10:13
-0:01
Half
13.11 mi13:38:012:16:2910:256:48
9:58
-0:15
25K
15.53 mi14:03:002:41:2810:2424:59
10:18
+0:20
30K
18.64 mi14:35:593:14:2710:2632:59
10:37
+0:19
20M
20.00 mi14:50:093:28:3710:2614:10
10:25
-0:12
21M
21.00 mi15:00:393:39:0710:2610:30
10:30
+0:05
35K
21.75 mi15:08:183:46:4610:267:39
10:14
-0:16
23M
23.00 mi15:21:163:59:4410:2512:58
10:21
+0:07
24M
24.00 mi15:31:154:09:4310:249:59
9:59
-0:22
40K
24.85 mi15:39:544:18:2210:248:39
10:07
+0:08
25.2M
25.20 mi15:43:494:22:1710:243:55
11:21
+1:14
Finish
26.22 mi15:54:144:32:4210:2510:25
10:13
-1:08

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

9:58 /mi

Average Pace

10:25 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:54:25

86% of race

Time at Steady Pace

38:17

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:24 /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 mi11:55:5434:2211:0434:22
11:04
#25776
10K
6.21 mi12:27:411:06:0910:3931:47
10:14
#24993
15K
9.32 mi12:59:291:37:5710:3131:48
10:14
#24648
20K
12.43 mi13:31:132:09:4110:2631:44
10:13
#24299
Half
13.11 mi13:38:012:16:2910:256:48
9:58
#24223
25K
15.53 mi14:03:002:41:2810:2424:59
10:18
#23954
30K
18.64 mi14:35:593:14:2710:2632:59
10:37
#23673
20M
20.00 mi14:50:093:28:3710:2614:10
10:25
#23536
21M
21.00 mi15:00:393:39:0710:2610:30
10:30
#23368
35K
21.75 mi15:08:183:46:4610:267:39
10:14
#23314
23M
23.00 mi15:21:163:59:4410:2512:58
10:21
#23193
24M
24.00 mi15:31:154:09:4310:249:59
9:59
#23084
40K
24.85 mi15:39:544:18:2210:248:39
10:07
#22968
25.2M
25.20 mi15:43:494:22:1710:243:55
11:21
#22949
Finish
26.22 mi15:54:144:32:4210:2510:25
10:13
#22941
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25776109051090523962(Top 90%)9873(Top 86%)9873(Top 526%)
10K6.21 mi3.10 mi24993+78310428+47710428+47724192(Top 91%)9990(Top 87%)9990(Top 532%)
15K9.32 mi3.11 mi24648+34510251+17710251+17723962(Top 90%)9873(Top 86%)9873(Top 526%)
20K12.43 mi3.11 mi24299+34910061+19010061+19023317(Top 88%)9524(Top 83%)9524(Top 507%)
Half13.11 mi0.68 mi24223+7610019+4210019+4223222(Top 87%)9476(Top 83%)9476(Top 505%)
25K15.53 mi2.42 mi23954+2699870+1499870+14922854(Top 86%)9302(Top 81%)9302(Top 495%)
30K18.64 mi3.11 mi23673+2819736+1349736+13422450(Top 84%)9156(Top 80%)9156(Top 488%)
20M20.00 mi1.36 mi23536+1379677+599677+5921575(Top 81%)8743(Top 77%)8743(Top 466%)
21M21.00 mi1.00 mi23368+1689596+819596+8119621(Top 74%)7719(Top 68%)7719(Top 411%)
35K21.75 mi0.75 mi23314+549572+249572+2421856(Top 82%)8972(Top 79%)8972(Top 478%)
23M23.00 mi1.25 mi23193+1219518+549518+5420978(Top 79%)8514(Top 75%)8514(Top 453%)
24M24.00 mi1.00 mi23084+1099481+379481+3720762(Top 78%)8416(Top 74%)8416(Top 448%)
40K24.85 mi0.85 mi22968+1169428+539428+5320313(Top 76%)8234(Top 72%)8234(Top 438%)
25.2M25.20 mi0.35 mi22949+199414+149414+1421295(Top 80%)8758(Top 77%)8758(Top 466%)
Finish26.22 mi1.02 mi22941+89420-69420-622366(Top 84%)9312(Top 82%)9312(Top 496%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23962

Females

9873

F40-44

9873

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24192

Females

9990

F40-44

9990

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23962

Females

9873

F40-44

9873

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23317

Females

9524

F40-44

9524

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

23222

Females

9476

F40-44

9476

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

22854

Females

9302

F40-44

9302

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

22450

Females

9156

F40-44

9156

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21575

Females

8743

F40-44

8743

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19621

Females

7719

F40-44

7719

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21856

Females

8972

F40-44

8972

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

20978

Females

8514

F40-44

8514

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20762

Females

8416

F40-44

8416

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20313

Females

8234

F40-44

8234

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21295

Females

8758

F40-44

8758

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22366

Females

9312

F40-44

9312

Passing Analysis

Category:
Athletes Passed
2924
Passed By
89
Net Change
+2835
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25776
5K → 10K7863+783#25776#24993
10K → 15K35813+345#24993#24648
15K → 20K3512+349#24648#24299
20K → Half793+76#24299#24223
Half → 25K2789+269#24223#23954
25K → 30K2898+281#23954#23673
30K → 20M1403+137#23673#23536
20M → 21M1680+168#23536#23368
21M → 35K606+54#23368#23314
35K → 23M1265+121#23314#23193
23M → 24M1101+109#23193#23084
24M → 40K1182+116#23084#22968
40K → 25.2M234+19#22968#22949
25.2M → Finish3830+8#22949#22941
TOTALS292489+2835
📊

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