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BOSTON MARATHON 2023

Tammy Zyduck

Bib: 17973•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
Masters (Masters Women)
#0 / 6539
Top 31%
Division (F55-59)
#0 / 815
Top 11%
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
8:17/mi
25:44
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
50:45
↑ 79↓ 1380.4%
15K· 9.32 mi
8:20/mi
1:16:38
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:43:58
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:49:42
↑ 19↓ 370.5%
25K· 15.53 mi
8:31/mi
2:10:20
↑ 66↓ 880.2%
30K· 18.64 mi
8:41/mi
2:37:18
↑ 181↓ 1480.2%
20M
8:45/mi
2:49:12
↑ 64↓ 500.2%
21M
9:04/mi
2:58:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
3:04:33
↑ 17↓ 861.7%
23M
8:42/mi
3:15:26
↑ 23↓ 630.6%
24M
8:04/mi
3:23:30
↓ 821.3%
40K· 24.85 mi
8:00/mi
3:30:20
↓ 200.3%
25.2M
8:19/mi
3:33:12
↑ 13↓ 160.2%
Finish· 26.22 mi
7:19/mi
3:40:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:42
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:50:57
Pace8:28 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0525:448:1725:44
8:17
-
10K
6.21 mi11:42:0650:458:1025:01
8:03
-0:14
15K
9.32 mi12:07:591:16:388:1325:53
8:20
+0:17
20K
12.43 mi12:35:191:43:588:2227:20
8:48
+0:28
Half
13.11 mi12:41:031:49:428:225:44
8:24
-0:24
25K
15.53 mi13:01:412:10:208:2320:38
8:31
+0:07
30K
18.64 mi13:28:392:37:188:2626:58
8:41
+0:10
20M
20.00 mi13:40:332:49:128:2811:54
8:45
+0:04
21M
21.00 mi13:49:372:58:168:299:04
9:04
+0:19
35K
21.75 mi13:55:543:04:338:296:17
8:24
-0:40
23M
23.00 mi14:06:473:15:268:3010:53
8:42
+0:18
24M
24.00 mi14:14:513:23:308:298:04
8:04
-0:38
40K
24.85 mi14:21:413:30:208:286:50
8:00
-0:04
25.2M
25.20 mi14:24:333:33:128:282:52
8:19
+0:19
Finish
26.22 mi14:32:003:40:398:257:27
7:19
-1:00

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

7:19 /mi

Average Pace

8:25 /mi

Slowest Pace

9:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

47:22

21% of race

Time at Steady Pace

1:27:08

39% of race

Time at Slower Pace

1:26:09

39% of race

Average Pace: 8:25 /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 mi11:17:0525:448:1725:44
8:17
#16033
10K
6.21 mi11:42:0650:458:1025:01
8:03
#15606
15K
9.32 mi12:07:591:16:388:1325:53
8:20
#15981
20K
12.43 mi12:35:191:43:588:2227:20
8:48
#16733
Half
13.11 mi12:41:031:49:428:225:44
8:24
#16752
25K
15.53 mi13:01:412:10:208:2320:38
8:31
#16669
30K
18.64 mi13:28:392:37:188:2626:58
8:41
#16397
20M
20.00 mi13:40:332:49:128:2811:54
8:45
#16283
21M
21.00 mi13:49:372:58:168:299:04
9:04
#16108
35K
21.75 mi13:55:543:04:338:296:17
8:24
#16053
23M
23.00 mi14:06:473:15:268:3010:53
8:42
#15944
24M
24.00 mi14:14:513:23:308:298:04
8:04
#15738
40K
24.85 mi14:21:413:30:208:286:50
8:00
#15529
25.2M
25.20 mi14:24:333:33:128:282:52
8:19
#15418
Finish
26.22 mi14:32:003:40:398:257:27
7:19
#15094
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi160335306530616736(Top 63%)5748(Top 50%)5748(Top 705%)
10K6.21 mi3.10 mi15606+4275035+2715035+27115198(Top 57%)4793(Top 42%)4793(Top 588%)
15K9.32 mi3.11 mi15981-3755270-2355270-23516736(Top 63%)5748(Top 50%)5748(Top 705%)
20K12.43 mi3.11 mi16733-7525758-4885758-48818660(Top 70%)6886(Top 60%)6886(Top 845%)
Half13.11 mi0.68 mi16752-195775-175775-1717157(Top 64%)5973(Top 52%)5973(Top 733%)
25K15.53 mi2.42 mi16669+835743+325743+3216261(Top 61%)5588(Top 49%)5588(Top 686%)
30K18.64 mi3.11 mi16397+2725621+1225621+12215401(Top 58%)5167(Top 45%)5167(Top 634%)
20M20.00 mi1.36 mi16283+1145572+495572+4915205(Top 57%)5114(Top 45%)5114(Top 627%)
21M21.00 mi1.00 mi16108+1755478+945478+9413823(Top 52%)4401(Top 39%)4401(Top 540%)
35K21.75 mi0.75 mi16053+555468+105468+1014752(Top 55%)4966(Top 43%)4966(Top 609%)
23M23.00 mi1.25 mi15944+1095427+415427+4114351(Top 54%)4824(Top 42%)4824(Top 592%)
24M24.00 mi1.00 mi15738+2065323+1045323+10411757(Top 44%)3476(Top 30%)3476(Top 427%)
40K24.85 mi0.85 mi15529+2095206+1175206+11710067(Top 38%)2704(Top 24%)2704(Top 332%)
25.2M25.20 mi0.35 mi15418+1115144+625144+628525(Top 32%)2076(Top 18%)2076(Top 255%)
Finish26.22 mi1.02 mi15094+3244965+1794965+1797243(Top 27%)1536(Top 13%)1536(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

16736

Females

5748

F55-59

5748

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15198

Females

4793

F55-59

4793

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

16736

Females

5748

F55-59

5748

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18660

Females

6886

F55-59

6886

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

17157

Females

5973

F55-59

5973

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16261

Females

5588

F55-59

5588

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15401

Females

5167

F55-59

5167

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15205

Females

5114

F55-59

5114

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13823

Females

4401

F55-59

4401

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14752

Females

4966

F55-59

4966

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14351

Females

4824

F55-59

4824

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11757

Females

3476

F55-59

3476

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10067

Females

2704

F55-59

2704

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8525

Females

2076

F55-59

2076

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7243

Females

1536

F55-59

1536

Passing Analysis

Category:
Athletes Passed
2607
Passed By
1668
Net Change
+939
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16033
5K → 10K566139+427#16033#15606
10K → 15K79454-375#15606#15981
15K → 20K38790-752#15981#16733
20K → Half1938-19#16733#16752
Half → 25K17087+83#16752#16669
25K → 30K32856+272#16669#16397
30K → 20M14026+114#16397#16283
20M → 21M18914+175#16283#16108
21M → 35K7722+55#16108#16053
35K → 23M14334+109#16053#15944
23M → 24M2115+206#15944#15738
24M → 40K2112+209#15738#15529
40K → 25.2M1121+111#15529#15418
25.2M → Finish3240+324#15418#15094
TOTALS26071668+939
📊

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